Block B's P.O. got very excited after shaking hands with Girls' Generation's Seohyun!

After his makeup session for Seohyun, P.O. put his hand out for a handshake before leaving the room. The two idol stars then held hands for a handshake, and P.O. could not hide his joy.

P.O. ran off, shouting, "I held Girls' Generation's hand!" Heechul then jokingly commented, "Come here, I'll cure it with my dirty hands."

Watch P.O.'s cute fanboy moment in the clip!