Jay Leno (“The Tonight Show with Jay Leno”) guest stars in “Phineas and Ferb Save Summer,” a special one-hour episode, premiering MONDAY, JUNE 9 (10:00-11:00 a.m., ET/PT) on Disney XD. The episode ushers in several new episodes of the Emmy Award-winning series airing throughout the summer. They include notable guest stars Jon Stewart (“The Daily Show with Jon Stewart”), Elizabeth Banks (“The Hunger Games”) and Simon Pegg (“Mission: Impossible – Ghost Protocol”).