A Guide to the Solo and Unit Voices of BTS’ Seven Members
Collection K-Pop 2026.09.15

A Guide to the Solo and Unit Voices of BTS’ Seven Members

Exploring 15 Selected Tracks from 《Proof》 CD2 that Showcase Individual and Team Colors

In BTS's albums, the seven members do not always sing in the same way. Tracks where the rap line and vocal line stand apart, unit songs that convey emotions between two or three members, and solo songs that focus on one member's voice and story create different perspectives among the group songs. The anthology 《Proof》 CD2 showcases this configuration with tracks selected directly by the members.

This list organizes the 15 songs from 'Run BTS' to 'Dimple' included in CD2 in official order. It checks the composition of solos and units without assigning rankings by member, explains how each song reveals different voices and relationships within the group album, and also provides the actual Apple Music registration information and playtime.
BTS - Run BTS

BTS - Run BTS

The first song on this list 'Run BTS' places the energy of the seven members looking back on their journey and pledging to keep running at the starting point of CD2. The official music release information for 'Run BTS' is confirmed to be released on 2022-06-10, included in 《Proof》, with a playtime of 3:25.

When listening to 'Run BTS', if you connect it to the following 'Intro : Persona' at position 1 of CD2, you’ll witness the moments when the individual monologue, unit conversation, and group energy change. Let’s focus on how the combination of voices alters the perspective of the song rather than ranking the members.
공개일 2022-06-10 앨범 Proof 아티스트 BTS 재생시간 3:25 감상 포인트 일곱 멤버가 지난 여정을 돌아보며 계속 달리겠다는 에너지를 CD2의 출발점에 놓는다 참여 구성 일곱 멤버 단체곡
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BTS - Intro : Persona

BTS - Intro : Persona

RM's solo rap opens up a personal perspective behind the group song with questions directed at himself. This is the reason why 'Intro : Persona' is chosen as the second entry. To distinguish the versions of 'Intro : Persona', check alongside the album 《Proof》 and the release date of 2019-04-12.

When listening to 'Intro : Persona', if you connect it with 'Run BTS' before and 'Stay' after at position 2 on CD2, you’ll see the moments when the individual monologue, unit conversation, and group energy change. Let’s observe how the combination of voices alters the song's perspective rather than ranking the members.
공개일 2019-04-12 앨범 Proof 아티스트 BTS 재생시간 2:51 감상 포인트 RM의 솔로 랩이 자신에게 던지는 질문으로 단체곡 뒤에 개인의 시점을 연다 참여 구성 RM 솔로
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BTS - Stay

BTS - Stay

‘Stay’ features RM, Jin, and Jung Kook sharing feelings of physical distance and connection within a fast-paced electronic pop backdrop, making it suitable for examining how solo, unit, and group voices intersect in 《Proof》 CD2. ‘Stay’ is a 3:26 long track included in 《Proof》, released on 2020-11-20.

When listening to 'Stay', if you follow it with 'Intro : Persona' before and 'Moon' after at position 3 on CD2, you’ll catch the moments when the individual monologue, unit conversation, and group energy change. Let’s explore how the combination of voices reshapes the song's perspective rather than ranking the members.
공개일 2020-11-20 앨범 Proof 아티스트 BTS 재생시간 3:26 감상 포인트 RM·Jin·Jung Kook이 빠른 전자 팝 안에서 물리적 거리와 연결의 감정을 나눈다 참여 구성 RM·Jin·Jung Kook 유닛
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BTS - Moon

BTS - Moon

In 'Moon', it is crucial to notice that Jin's solo vocals metaphorically place the fan on Earth and himself on the Moon, depicting a close relationship. The official streaming information for 'Moon' states it is included in 《Proof》, released on 2020-02-21, and has a playtime of 3:28.

When listening to 'Moon', if you connect it with 'Stay' before and 'Jamais Vu' after at position 4 on CD2, you’ll see the moments when the individual monologue, unit conversation, and group energy change. Let’s observe how the combination of voices alters the song’s perspective rather than ranking the members.
공개일 2020-02-21 앨범 Proof 아티스트 BTS 재생시간 3:28 감상 포인트 Jin의 솔로 보컬이 팬을 지구에, 자신을 달에 비유하며 가까이 머무는 관계를 그린다 참여 구성 Jin 솔로
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BTS - Jamais Vu

BTS - Jamais Vu

The fifth song on this list, ‘Jamais Vu’, features j-hope, Jin, and Jung Kook connecting their experiences of recurring wounds and new beginnings using different tonalities. The official music release information for 'Jamais Vu' confirms it was released on 2019-04-12, included in 《Proof》, with a playtime of 3:47.

When listening to 'Jamais Vu', if you connect it with 'Moon' before and 'Trivia 轉 : Seesaw' after at position 5 on CD2, you’ll notice the moments when the individual monologue, unit conversation, and group energy change. Let’s examine how the combination of voices changes the perspective of the song instead of ranking the members.
공개일 2019-04-12 앨범 Proof 아티스트 BTS 재생시간 3:47 감상 포인트 j-hope·Jin·Jung Kook이 반복되는 상처와 다시 시작하는 마음을 서로 다른 음색으로 잇는다 참여 구성 j-hope·Jin·Jung Kook 유닛
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BTS - Trivia 轉 : Seesaw

BTS - Trivia 轉 : Seesaw

SUGA draws a parallel between an unbalanced relationship and a seesaw, creating a balance between rap and melody. This feature is why 'Trivia 轉 : Seesaw' was chosen as the sixth entry. To distinguish the versions of 'Trivia 轉 : Seesaw', check alongside the album 《Proof》 and the release date of 2018-08-24.

When listening to 'Trivia 轉 : Seesaw', if you connect it with 'Jamais Vu' before and 'BTS Cypher PT.3 : KILLER (feat. Supreme Boi)' after at position 6 on CD2, you’ll see moments when the individual monologue, unit conversation, and group energy change. Let’s look at how the combination of voices reshapes the song's perspective rather than ranking the members.
공개일 2018-08-24 앨범 Proof 아티스트 BTS 재생시간 4:06 감상 포인트 SUGA가 기울어진 관계를 시소에 빗대며 랩과 멜로디 사이의 균형을 만든다 참여 구성 SUGA 솔로
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BTS - BTS Cypher PT.3 : KILLER (feat. Supreme Boi)

BTS - BTS Cypher PT.3 : KILLER (feat. Supreme Boi)

‘BTS Cypher PT.3 : KILLER (feat. Supreme Boi)’ features the rap line exchanging fast flows with Supreme Boi, emphasizing initial competitiveness and confidence, making it suitable for looking at how the voices of solo, unit, and group songs intersect in 《Proof》 CD2. ‘BTS Cypher PT.3 : KILLER (feat. Supreme Boi)’ is a 4:29-long track included in 《Proof》, released on 2014-08-20.

When listening to 'BTS Cypher PT.3 : KILLER (feat. Supreme Boi)', if you connect it with 'Trivia 轉 : Seesaw' before and 'Outro : Ego' after at position 7 on CD2, you’ll notice moments when the individual monologue, unit conversation, and group energy change. Let’s analyze how the combination of voices alters the song's perspective instead of ranking the members.
공개일 2014-08-20 앨범 Proof 아티스트 BTS 재생시간 4:29 감상 포인트 랩 라인이 Supreme Boi와 빠른 플로를 주고받으며 초기 경쟁심과 자신감을 전면에 세운다 참여 구성 RM·SUGA·j-hope 랩 라인
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BTS - Outro : Ego

BTS - Outro : Ego

In 'Outro : Ego', it is essential to recognize that j-hope’s solo song brightly affirms past choices and his current self over an upbeat rhythm. The official streaming information for 'Outro : Ego' states it is part of 《Proof》, released on 2020-02-21, with a playtime of 3:16.

When listening to 'Outro : Ego', if you connect it with 'BTS Cypher PT.3 : KILLER (feat. Supreme Boi)' before and 'Her' after at position 8 on CD2, you’ll see moments when the individual monologue, unit conversation, and group energy change. Let’s examine how the combination of voices reshapes the perspective of the song rather than ranking the members.
공개일 2020-02-21 앨범 Proof 아티스트 BTS 재생시간 3:16 감상 포인트 j-hope가 과거의 선택과 현재의 자아를 밝은 리듬 위에서 긍정하는 솔로곡이다 참여 구성 j-hope 솔로
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BTS - Her

BTS - Her

The ninth song on this list, ‘Her’, features the rap line exploring the relationship between love and self from three different angles over a low and relaxed beat. The official music release information for 'Her' confirms it was released on 2017-09-18, included in 《Proof》, with a playtime of 3:49.

When listening to 'Her', if you connect it with 'Outro : Ego' before and 'Filter' after at position 9 on CD2, you’ll notice moments when the individual monologue, unit conversation, and group energy change. Let’s observe how the combination of voices alters the song's perspective rather than ranking the members.
공개일 2017-09-18 앨범 Proof 아티스트 BTS 재생시간 3:49 감상 포인트 랩 라인이 사랑과 자아의 관계를 세 관점으로 나눠 낮고 여유로운 비트 위에 펼친다 참여 구성 RM·SUGA·j-hope 랩 라인
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BTS - Filter

BTS - Filter

In 'Filter', Jimin expresses how he changes his appearance according to others' views with an alluring rhythm and solo vocals. This characteristic is the reason why 'Filter' is chosen as the tenth entry. To distinguish the versions, check alongside the album 《Proof》 and the release date of 2020-02-21.

When listening to 'Filter', if you connect it with 'Her' before and 'Friends' after at position 10 on CD2, you’ll witness moments when the individual monologue, unit conversation, and group energy shift. Let’s explore how the combination of voices reshapes the song's perspective instead of ranking the members.
공개일 2020-02-21 앨범 Proof 아티스트 BTS 재생시간 3:00 감상 포인트 Jimin이 타인의 시선에 맞춰 달라지는 모습을 매혹적인 리듬과 솔로 보컬로 표현한다 참여 구성 Jimin 솔로
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BTS - Friends

BTS - Friends

'Friends' features Jimin and V preserving memories of their long-standing friendship through their dialogue and harmonies, making it fitting for analyzing how solo, unit, and group voices intersect in 《Proof》 CD2. 'Friends' is a 3:19-long track included in 《Proof》, released on 2020-02-21.

When listening to 'Friends', if you connect it with 'Filter' before and 'Singularity' after at position 11 on CD2, you’ll see moments when the individual monologue, unit conversation, and group energy change. Let’s observe how the combination of voices alters the perspective of the song rather than ranking the members.
공개일 2020-02-21 앨범 Proof 아티스트 BTS 재생시간 3:19 감상 포인트 Jimin과 V가 오랜 우정의 구체적인 기억을 두 사람의 대화와 화음으로 남긴다 참여 구성 Jimin·V 유닛
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BTS - Singularity

BTS - Singularity

In ‘Singularity’, it is important to note how V’s low voice and slow R&B portray a loss of self within a relationship as a monologue. The official streaming information for 'Singularity' states it is included in 《Proof》, released on 2018-05-18, with a playtime of 3:17.

When listening to 'Singularity', if you connect it with 'Friends' before and '00:00 (Zero O'Clock)' after at position 12 on CD2, you’ll witness moments when the individual monologue, unit conversation, and group energy shift. Let’s analyze how the combination of voices reshapes the song's perspective instead of ranking the members.
공개일 2018-05-18 앨범 Proof 아티스트 BTS 재생시간 3:17 감상 포인트 V의 낮은 목소리와 느린 R&B가 관계 속에서 잃어버린 자신을 독백처럼 보여준다 참여 구성 V 솔로
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BTS - 00:00 (Zero O'Clock)

BTS - 00:00 (Zero O'Clock)

The thirteenth song on this list, ‘00:00 (Zero O'Clock)’, features the vocal line turning midnight into a new beginning, offering hope after a tiring day. The official music release information for '00:00 (Zero O'Clock)' confirms it was released on 2020-02-21, included in 《Proof》, with a playtime of 4:10.

When listening to '00:00 (Zero O'Clock)', if you connect it with 'Singularity' before and 'Euphoria' after at position 13 on CD2, you’ll see moments when the individual monologue, unit conversation, and group energy change. Let’s observe how the combination of voices alters the perspective of the song rather than ranking the members.
공개일 2020-02-21 앨범 Proof 아티스트 BTS 재생시간 4:10 감상 포인트 보컬 라인이 자정을 새로운 시작으로 삼아 지친 하루 뒤의 희망을 함께 건넨다 참여 구성 Jin·Jimin·V·Jung Kook 보컬 라인
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BTS - Euphoria

BTS - Euphoria

Jung Kook’s clear solo vocals unfold feelings of love and happiness over a broad pop sound. This characteristic is the reason why 'Euphoria' is chosen as the fourteenth entry. To distinguish the versions, check alongside the album 《Proof》 and the release date of 2018-04-06.

When listening to 'Euphoria', if you connect it with '00:00 (Zero O'Clock)' before and 'Dimple' after at position 14 on CD2, you’ll witness moments when the individual monologue, unit conversation, and group energy shift. Let’s explore how the combination of voices reshapes the song's perspective instead of ranking the members.
공개일 2018-04-06 앨범 Proof 아티스트 BTS 재생시간 3:49 감상 포인트 Jung Kook의 맑은 솔로 보컬이 사랑과 행복의 상승감을 넓은 팝 사운드로 펼친다 참여 구성 Jung Kook 솔로
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BTS - Dimple

BTS - Dimple

In ‘Dimple’, the smooth harmonies of the vocal line compare the dimples of a smile to an unrealistic charm, making it suitable for exploring how solo, unit, and group voices intersect in 《Proof》 CD2. ‘Dimple’ is a 3:17-long track included in 《Proof》, released on 2017-09-18.

When listening to 'Dimple', if you connect it with 'Euphoria' at position 15 on CD2, you’ll see moments when the individual monologue, unit conversation, and group energy shift. Let’s observe how the combination of voices alters the perspective of the song rather than ranking the members.
공개일 2017-09-18 앨범 Proof 아티스트 BTS 재생시간 3:17 감상 포인트 보컬 라인의 부드러운 화음이 미소의 보조개를 비현실적인 매력에 빗대어 노래한다 참여 구성 Jin·Jimin·V·Jung Kook 보컬 라인
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Listening to 《Proof》 CD2 sequentially reveals that the solo and unit songs are not separate from group activities but serve as devices that break down the album's narrative. Individual monologues, conversations between the rap line, harmonies from the vocal line, and relationships between friends and members all intertwine, showcasing various faces of the team up to the final ‘Dimple’.

Start by listening in the order of inclusion, then try grouping them into solo, 2-person units, 3-person or more units, and group songs. Even the same members use their voices differently depending on the song. By extending the listening experience to the tracks before and after the original album, you’ll have grounds to interpret why these songs were chosen again in 《Proof》.

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