Marty the Rabbit Boy is a musician who auditioned for The Next Super American Pop Teen Idol Star at the Googolplex Mall. He performed with his musical blender and won the contest. By doing so, he was sent to Hollywood. Candace was jealous and noted that she should have taken blender lessons. Marty was mistaken for Phineas and his blender mistaken for Ferb by Candace through the shadow of the stage curtains ("Flop Starz").
While Candace was searching for Perry, she mistook him again for her brothers. He tried to cheer her up with a song played on his blender, to the tune of Gitchee Gitchee Goo ("Oh, There You Are, Perry").
