Acting idols 5urprise have made their singing debut with an OST for upcoming drama 'After School Randomness'.

The debut single is "Hey You Come On" a fun track that also serves the dual purpose of proving that the actor-hopefuls can also sing.

5urprise is a 5-member group made up of not 5 singers, but 5 actors. The group is made up of members Seo Kang Joon, Lee Tae Hwan, Yoo Il, Gong Myung, and Kang Tae Oh. The members are in their early 20s and were chosen through the 'Actor's League' program, which auditions actor-hopefuls.

The boys were also trained for 2 years in singing and dancing on top of their acting. Seo Kang Joon is the leader of the group. The drama, of which several members will appear in, will begin airing on September 2nd. 

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