Offspring frontman Dexter Holland recently put on a different kind of performance - delivering the commencement speech at USC's Keck School of Medicine.
Holland holds a PhD in molecular biology from the school and devotes himself to HIV research when he's not busy being a rock star.
Holland told graduating students "My story has both a musical side and a scientific side" and that "I believe there's an intersection between art and science".
He even said the Offspring's breakout hit "Come Out and Play" came out of the USC chemistry lab - the line 'you gotta keep 'em separated' was inspired by cooling Erlenmeyer flasks that needed to be kept apart.
Dr. Holland's commencement speech is below.