Before the end of 2010, Pledis Entertainment decided to give back to their fans and community by releasing a charity project album series, called "Happy Pledis", sung by various Pledis artists, including After School, Son Dambi, and Orange Caramel. It was then announced that a portion of the profits earned from the "Happy Pledis" project would be donated to the "Save the Children Fund" organization. Having released concept photos, their album, and a MV earlier in the week, all that was left for After School to do was the weekly run of promotions on public music show programs. They are definitely showing more of their soft feminine charm with this song. Check out their performance of "Someone Is You" from Music Bank below!