Tune Entertainment, Yang became a member of South Korean quintet boy band MBLAQ, serving as their leader, lead dancer and vocalist.

They held an event at the Kanagawa Lazona Kawasaki Plaza, which gathered a reported 10,000 fans.

[citation needed] Besides the group activities, Yang also guests on various television shows as a solo artist as well.

These include Super Junior Miracle, Idol Maknae Rebellion, Kara Bakery, and Running Man, among others.

After high school, he enrolled at the Sejong University of Film Arts but left afterwards due to MBLAQ's busy schedule.

[citation needed] All song credits are adapted from the Korea Music Copyright Association's database.