His piece "Temptation Sensation" is used as the theme song for the FXX TV show It's Always Sunny in Philadelphia.
Lajoie currently has a role in the FXX TV show The League as Taco MacArthur, a perpetually stoned and unemployed musician.
Stephen Rannazzisi (born July 4, 1978) is an American actor and stand-up comedian who has appeared in Paul Blart: Mall Cop and is currently featured in the FXX television show The League as former fantasy football league commissioner Kevin MacArthur, the brother of Taco MacArthur (Jon Lajoie).