Pink Blossom is the fourth mini-album by South Korean girl group Apink, released on March 31, 2014. Group leader, Chorong wrote two songs for the album. A song "Mr.Chu", composed by Duble Sidekick chosen as the title song used to promote the album, with music video were released on the same day. The song peaked at number 2 on Billboard's K-Pop Hot 100. Apink won six music show trophies for "Mr.