- Directors: Peter Cattaneo
- Producers: Fox Atomic
- Writers: Maya Forbes Wallace Wolodarsky, Story by Ryan Jaffe
- Genres: Comedy, Music
- Actors: Rainn Wilson, Christina Applegate, Teddy Geiger, Josh Gad, Will Arnett, Emma Stone
Robert “Fish” Fishman (Rainn Wilson) was once the drummer for Vesuvius, which went on to be a successful glam metal band without him. At the insistence of their manager and their own greed, he’s kicked out of the band and replaced by the son of the record label’s president. Fish vows never to play drums again. Twenty years later, after failing at another cubicle job, breaking up with his girlfriend, and having to move in with his sister, Fish finds himself living in the attic “looking” for work. When it looks like he’ll be a loser for life, his dorky, socially awkward nephew Matt saves the day. Matt (Josh Gad) plays the keyboards in a power pop band called A.D.D., joined by the dark, brooding Curtis (Teddy Geiger) and the no-nonsense Amelia (Emma Stone). The band is set to play the prom when their drummer gets thrown out of school for bringing “hash brownies” to the Spanish club luncheon. Running out of time, Matty suggests they give his Uncle Fish a try.
The prom turns into a disaster, being Fish’s first time on stage again, and his drum solo takes over the King and Queen’s dance in a fit of rage, sweat, and sheer embarrassment for A.D.D. Fish tries to make amends by trying to get the band a gig. Eventually, he gets them booked, but all the way in Fort Wayne, Indiana. The band decides to sneak out in Matt’s mom’s car, but are soon busted after she reports her car stolen.
Matt and Amelia convince Curtis that the band is nothing without the spirit of Fish after the label’s appointed drummer doesn’t fit in, and Curtis convinces Fish to do the gig. Upon arriving at the stadium before their performance, Fish encounters his former bandmates who have all adopted phony British accents and egocentric attitudes. To his happiness, Fish finds that he is able to let the past go and wishes Vesuvius a great show. Fish and the band play an incredible show. When they think things couldn’t get any better, Vesuvius takes the stage. And with one slip of the mic stand, the lead singer’s microphone goes crashing to the ground. This mistake causes the singer to search for the lost microphone, while the voice track is still going, exposing their fraud for lip-syncing the entire time. The audience goes wild, booing Vesuvius off the stage in a cloud of embarrassment, and chanting, “A.D.D.! A.D.D.!” Against the advice of David, whom they fire on the spot, the band take the stage again and performs for the crowd.