In what year was the album “New Schoolgirl” released by After School?

In what year was the album “New Schoolgirl” released by After School?: The album “New Schoolgirl” was released in 2009 by After School, featuring 3 tracks.
What is the most successful song from the album “New Schoolgirl” by After School?: “Ah” is the biggest hit from the album “New Schoolgirl” by After School.

Other artists of K-Pop