Episode Title:Teen Titans: The Lost.Episode Description:A new villain called Punk Rocket sets off shock waves playing loud music on his guitar, which releases destructive sonic waves. The Titans arrive at the concert where he is performing, but succumb to the guitar's powerful sonic waves. Beast Boy, however, taunts Punk Rocket into playing his guitar loud enough to blow out the speakers. Meanwhile, Beast Boy disturbs the other Titans with his loud music.