'Superstar K4' top 12 contestant Kye Bum Joo has been revealed to have participated as a composer in Block B's new album, 'Blockbuster'.

One of the 12 songs included in 'Blockbuster', "Movie's Over", was co-composed by Kye Bum Joo and Block B's Zico.

Although Kye Bum Joo had unfortunately failed to move on after the first live round broadcast on 'Superstar K4', he is showing his full potential as a multi-talented musician by having participated in the editing process as well as the chorus session of "Movie's Over" in addition to composing.

Meanwhile, Block B held their first comeback stage with their title song, "NILLILI MAMBO" on Mnet's 'M! Countdown'.