Girl group After School will be releasing a new song titled, "Week," as part of producer Brave Brothers 10th anniversary album.

Brave Entertainment revealed through twitter today, "Our next group to feature for our 10th anniversary album is After School! They will be releasing the song, 'Week' on February 21."

Last year, Brave Brothers revealed that in order to celebrate their 10th anniversary, they would release a new song each month for 10 months and feature an artist with a song that they produced.

So far they have released songs with 4minute and Im Chang Jung.

Many are excited to see what type of song After School will come out with.