User blog comment:Mobo85/Hot off the Presses: "Phineas and Ferb: Across the 1st and 2nd Dimensions"/@comment-4939314-20110713024559

Well the costume of Phineas is the same of the balheatles, but without the jacket: http://images2.wikia.nocookie.net/__cb20090803220715/phineasandferb/images/thumb/0/05/PunkRockPhineas.png/154px-PunkRockPhineas.png