Stan and Kyle become obsessed with Guitar Hero to the point where they're breaking high score records. It doesn't take long for Stan to realize that he could go even further with a different partner. Will the stress of being a rock star get to Stan now that his best friend is no longer by his side?
Elenco: Trey Parker , Matt Stone , Mona Marshall , April Stewart , Isaac Hayes , Eliza Schneider , Mary Kay Bergman , Milan Agnone , Sebastian Yu , Jessie Jo Thomas , Jennifer Howell .