After revealing their talented main vocalist earlier today, A Pink has returned with a video teaser of their fifth member, Hong Yoo Kyung! On March 10th, A Cube Entertainment's official Twitter reported, "Is this a reveal of a track from their debut album?�A classic idol that has never been seen before!�What is the song our fifth member, Hong Yoo Kyung, is playing for you in this video?" Judging from the video and tweet, the fifth member is speculated to be a talented pianist performing a piano version of a song from their debut album. Fans replied, "She kind of looks like Park Min Young!" and "I wonder what their album will sound like." Check out the video and stay tuned for the remaining two members! Source: @ACUBE2011