The Bettys is a rock band from Phineas and Ferb.
The all-female band consists of Crash, Missy, Tink, and band-mascot Sir Bacon, and are a favourite of Candace Flynn and Stacy Hirano. After winning a call-in contest, both get to meet the band, and after doing some chores for them, perform with the Bettys as back-up singers on "Ready for the Bettys" on stage.
The Bettys appeared on 18. February 2008 in the season 1 episode 14 "Ready for the Bettys. Singing voice is provided by Olivia Olson, who is also the voice of Vanessa Doofenshmirtz and Lindana.