[1] As a teaser of the mini-album, the song "Still in Love" was released on March 16, along with a special music video featuring scenes of the group in a recording studio.

[2] The first teaser of the song and music video for "Hey You" was released on March 19 featuring the member Jung Shin.

This version of the song was firstly introduced on KBS's show Music Bank Year-End special on December 23, 2011 with few changes of the lyrics.

It includes the same track list and there will be 140 pages of pictorial photos and a DVD containing a 20-minute clip of the members shooting in the U.S.

The album Ear Fun and the title track "Hey You" won 4 music show awards, from M!