Alyson Stoner and Mitchel Musso attend the PaleyFest Family 2011 held at Paley Center for Media on Saturday morning (August 13) in Beverly Hills, Calif.

The two joined their Phineas & Ferb cast mates to discuss the hit animated series.

The weekend-long festival also featured special screenings, autograph signings, and a variety of interactive elements for kids and families.

Creators Dan Povenmire and Jeff “Swampy” Marsh recently chatted with EW about the music featured in the show, “We’re frustrated musicians from way back. We wrote a song for the second episode. We were a little worried about what the executives would think of the song and stuff. We pitched it to them with a demo of the song, and the one note was, Can we hear the song again? Then they said, ‘Can you write a song for every episode?’ We were like, ‘Yes, yes we can.’ We’ve written like 260 songs for the show now.”

10+ pics inside of Alyson and Mitchel…