Uploaded November 2015 | Updated September 2026, 2 weeks ago
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"Today is Gonna Be a Great Day" is the full version of the series' theme song. It is performed by the band Bowling For Soup. The song is composed in a fast, loud rock styling, but was originally written as a slow song with a light chorus, based on classic Disney songs. Many stanzas in the song are at least closely resembling actual adventures and inventions Phineas and Ferb take part in throughout the series, while others are merely interesting things the boys could possibly do. The song first appeared in its entirety in the episode "Phineas and Ferb's Quantum Boogaloo," and then was released as part of the official series soundtrack.
Follow PhineasFan11 on Twitter: twitter.com/Fan11Phineas
"Today is Gonna Be a Great Day" is the full version of the series' theme song. It is performed by the band Bowling For Soup. The song is composed in a fast, loud rock styling, but was originally written as a slow song with a light chorus, based on classic Disney songs. Many stanzas in the song are at least closely resembling actual adventures and inventions Phineas and Ferb take part in throughout the series, while others are merely interesting things the boys could possibly do. The song first appeared in its entirety in the episode "Phineas and Ferb's Quantum Boogaloo," and then was released as part of the official series soundtrack.
![Phineas and Ferb - Summer All Over the World [SOUNDTRACK] Lyrics](https://i.ytimg.com/vi/qxjAZvN0szg/mqdefault.jpg "Phineas and Ferb - Summer All Over the World [SOUNDTRACK] Lyrics
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Soundtrack version of the opening song from P&F Save Summer, Summer All Over The World")
![Phineas and Ferb - Curtain Call / Time Spent Together [SOUNDTRACK] Lyrics](https://i.ytimg.com/vi/x4HJuAT-owc/mqdefault.jpg "Phineas and Ferb - Curtain Call / Time Spent Together [SOUNDTRACK] Lyrics
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Based on request, the soundtracked and FULL version of the FINALE song, Curtain Call / Time Spent Together from the series finale, Last Day of Summer.")
