Simon D is back in the music scene again after 9 months. He will collaborate with Jay Park by featuring in his new track "Metronome".

"Metronome", the digital single featuring Simon D, will be released through online music stores on April 11. The music video featuring both Jay Park and Simon D will also be revealed at that time. Simon D hasn't appeared in the music scene since Supreme Team's breakup 9 months ago. Since Simon D has hopped on Jay Park's hip-hop label AOMG, all eyes have been gathered on Jay Park and Simon D's collaboration.

It was confirmed that Simon D would not make TV appearances for promotion. Sources claimed: "Metronome is a harmonious collaboration between Jay Park and Simon D. The song is produced by GRAY to enhance AOMG's unique music style".

Simon D and Jay Park's AOMG leads artists such as GRAY, Loco, Ugly Duck, and DJ Pumpkin. They will feature in Mnet's "Ssagaji Show", a reality program revealing the lives of AOMG hip-hop artists.

Simon D debuted with E-Sens as hip-hop duo Supreme Team, bringing a storm to K-pop with their hit songs "Then Then Then" and "Dang Dang Dang". Supreme Team won the Hip-Hop Awards at the Golden Disc in 2010, but decided to go separate ways last July.