What'cha Doin?

"What'cha Doin?" is a song that appears in the Phineas and Ferb episode, "Rollercoaster: The Musical!". It is performed by Isabella Garcia-Shapiro and the Fireside Girls, and is based on Isabella's catchphrase.
==Lyrics==
:Isabella: I'm just the curious girl 'cross the way
:Every day I come over and here's what I say...
:What'cha doin'?, what'cha doin'?
:What's the day's activity
:What'cha doin'?, what'cha doin'?
:By any chance, could it include me?
:What'cha doin'?, what'cha doin'?
:Fireside Girls: (What'cha doin'?)
:Isabella and Fireside Girls: I don't mean to disturb
:Isabella: What'cha doin'?, what'cha doin'?
:Fireside Girls: (What'cha doin'?)
:Isabella and Fireside Girls: You know it's not really directed at Ferb
:When I say-ay-ay-ay-ay
:What'cha doin'?
:Isabella: Don't you know, Phineas? You have no idea
:That every day I'm just dyin' to see ya...
:And say...
:Isabella: What'cha doin'?, what'cha doin'?
:Fireside Girls: (What'cha doin?)
:Isabella and Fireside Girls: I really wanna know
:Isabella: What'cha doin'?, what'cha doin'?
:Fireside Girls: (What'cha doin?)
:Isabella: Can I be part of the show
:Isabella and Fireside Girls: When I say-ay-ay-ay-ay
:What'cha doin'?
==Background Information==
*Much of the background in the song features outlines of hearts and Phineas' head, very likely representing Isabella's affection for Phineas.
*Adyson Sweetwater and Ginger Hirano do not appear in this song, though the other four recurring (and shorter) Fireside Girls do.
*Once again, Isabella sings mostly by herself. (City of Love and The Yellow Sidewalk)
*This is the third time Isabella sings her catchphrase. ("The Dad-inator", We Wish You A Merry Christmas) This is the first time though, that it was in an episode.
*This is the fourth time the song starts slow, then gets fast. The others songs in broadcast order: Spa Day, Atlantis, and Wedding Adventure. Interestingly, Isabella was singing in all four of the songs.
*Isabella's line, "By any chance, could it include me?" could be a reference to episodes where Phineas and Ferb's Big Ideas are centered around Isabella like "I Scream, You Scream", "One Good Scare Ought to Do It!", and "Hail Doofania!". It could also be a reference to when she asks if she can join them as in "The Fast and the Phineas" and "De Plane! De Plane!"
*This is the second time Isabella has sung about Phineas. The first was City of Love.
==Errors==
*When Katie and Milly first appear, they disappear for a split second then appear again.
*The line "Everyday I come over" is incorrect, as Isabella does not show up for some of Phineas and Ferb's projects ("I, Brobot" to name one) or is just surprised to see them when they visit her (such as "Ready for the Bettys").
==Gallery==
Isabella, Milly, and Katie.jpg
When I say-ay-ay-ay.jpg
And saying....jpg
Girls dancing.jpg
Category:Songs
Category:Season 2 Phineas and Ferb songs
Category:Group songs