How many songs are credited to both 서은일 (Seo Eun Il) and 심은지 (Sim Eunjee)?

5 songs in our catalogue list both names in the credits.

When did 서은일 (Seo Eun Il) and 심은지 (Sim Eunjee) first appear together on a song?

Their earliest co-credit in our catalogue is from 2024.

Have 서은일 (Seo Eun Il) and 심은지 (Sim Eunjee) worked together recently?

Their most recent shared credit is from 2026.

How many albums feature both 서은일 (Seo Eun Il) and 심은지 (Sim Eunjee)?

9 albums in the catalogue have credits for both names.

Who do 서은일 (Seo Eun Il) and 심은지 (Sim Eunjee) most often work with together?

Their most-credited shared artist is twice.

Seo Eun Il & Sim Eunjee co-credits

Co-credited tracks

Span

2024–2026

Shared albums

Most often working with

twice

Albums featuring both

My First Flip
KickFlip
With YOU-th - EP
TWICE
Beautiful Mind
Xdinary Heroes
BORN TO BE
ITZY
Deadlock
Xdinary Heroes
Kick Out, Flip Now!
KickFlip
Livelock
Xdinary Heroes
ONE SPARK
TWICE
Troubleshooting
Xdinary Heroes

5 co-credited songs

Tracks where both 서은일 (Seo Eun Il) and 심은지 (Sim Eunjee) appear in our credits — any combination of writing, production, performance or engineering. Roles for each side shown per track.

Tiki-taka2026
KickFlip·My First Flip
서은일 (Seo Eun Il)Recording Engineer
심은지 (Sim Eunjee)ArrangerBassComposerDrumsKeyboardsproducerwriter
ONE SPARK

See full credits for 서은일 (Seo Eun Il) or 심은지 (Sim Eunjee).