Well, I know it is by Bowling for Soup on the Phineas and Ferb Soundtrack. I beileve it is called Gotta make Summer Last or 104 days
http://dogman15.deviantart.com/art/Phineas-and-Ferb-theme-song-158056539
no that song was made recently and the song would be on a Phineas and ferb soundtrack CD
There hasn't been an episode with nanobots yet, but it will probably happen eventually since it's in the theme song.
Candace is Phineas's sister. Ferb and Phineas are stepbrothers.
Danny Jacob
http://dogman15.deviantart.com/art/Phineas-and-Ferb-theme-song-158056539
no that song was made recently and the song would be on a Phineas and ferb soundtrack CD
yes they did do the theme song.
They say for summer vaccation in the theme song!
"Locating Frankenstein's brain"
it is from the phineas and ferb christmas special.
phineas and ferb musical cliptastic countdown
So first you have the opening, and the totally first song in the show is ..........Perry the Platypus Theme Song - in episode Rollercoaster
If you are talking about the theme song, no, but she does sing 'That Christmas Feeling' (Which i think is the song you meant)
Melanty Weleanor sings "The Only Fish For Me" from Phineas and Ferb.
go to televisiontunes you can get loads of Phineas and ferb songs
No