What Might Have Been

"" is a duet between Phineas and Isabella in the Season 4 episode "Act Your Age". The song was first mentioned on Twitter and later confirmed in a live Spreecast chat.

Background Information

 * Third song to involve Isabella's relationship with Phineas ("City of Love", "Isabella's Birthday Song").
 * The fourth time Isabella sings about Phineas ("City of Love", "What'cha Doin'?'", "Isabella's Birthday Song"), and the first time Phineas sings about Isabella.

Production Information

 * The song was first seen via Twitter tweets.
 * According to Robert Hughes, the song will feature the word "Phinabella", a popular fan term for the Phineas/Isabella pairing.
 * This song was co-written by Madison Scheckel, the daughter of Benita Scheckel, the voice of Lacie.
 * The name was revealed by Dan Povermire.

Songwriters

 * Robert F. Hughes
 * Dan Povenmire
 * Madison Scheckel