User blog comment:Mobo85/Phineas and Ferb Are Seeing Stars in Their Third Season/@comment-3392706-20110212002342

Ooooh... guest stars! Will they be playing themselves, as Kenny Ortega did in Rollercoaster: the Musical!, will they be lending their voices to original characters, like Ben Stiller as Khaka Peü Peü, or is this as yet unknown?