Today is Bridgit Mendler's birthday! While you may know the actress and singer mostly from her role on Good Luck Charlie, she actually appeared on a bunch of Disney Channel shows before then — including Jonas L.A.. She played Nick Jonas' love interest, and they even sang a little bit together. (Oh, the feels.)

Click through to see more celebs who guest-starred on the show, and let us know if you miss the show in the comments!