F.CUZ has released a song in celebration of the group's 1000th day anniversary since debut.

The members covered "I'm Sorry, Thank You, I Love You", by their labelmate sunbae Monday Kiz, in their own F.CUZ style.�Lead member Jinon is reported to have wrote the lyrics to the rap portion himself. F.CUZ' fans also make a surprise appearance in the clip as well.

Check out the clip below!