In what year was the album “Bubble Pop!” released by 현아?

In what year was the album “Bubble Pop!” released by 현아?: The album “Bubble Pop!” was released in 2011 by 현아, featuring 5 tracks.
What is the most successful song from the album “Bubble Pop!” by 현아?: “Attention” is the biggest hit from the album “Bubble Pop!” by 현아.

Other artists of Contemporary R&B