The theme song for Phineas and Ferb is "Today is Gonna Be a Great Day" and is performed by "Bowling for Soup". The song was written by show creators Jeff "Swampy" Marsh and Dan Povenmire, Michael Culcross, Michael Walker and Carl Williams and Bowling for Soup's Jaret Reddick.
Because it was written for the TV show "Phineas and Ferb". It is now the theme tune for that TV show.
Bowling for soup
Paul Mardle
Bear McCreary.
Roger Webb
Because it was written for the TV show "Phineas and Ferb". It is now the theme tune for that TV show.
Bowling for Soup have written the theme tune for "Phineas and Ferb" and their cover of I Ran (So Far Away) was used as the theme tune for the anime show "Knights of the Zodiac"
Bowling for soup
Because it needed a theme tune
Andy Love
Paul Mardle
Bear McCreary.
The Dennis Waterman band
Bill conti
He wrote the theme tune.
David Croft and Roy Moore!
Roger Webb