This Is My Jam

Synopsis
Rigby has an annoying song stuck in his head, much to the chagrin of him and Mordecai. Mordecai helps Rigby as they try to get the song out of his head, but find it very difficult. Eventually, Rigby takes a nap and manages to remove the song from his head; however, the song comes to life in the form of a humanoid cassette tape with eyeglass shades, and annoys everyone. Now, all the park employees unite and write their own cheesy song to try and defeat the Summertime song.

Plot
Mordecai and Rigby are cleaning the gutter of the house. Mordecai wanted the gloves Rigby is wearing because his hands are dirty, but Rigby said that he won the gloves when they were playing rock-paper-scissors. When Rigby hoses off the leaves, he finds an old music tape. At first Mordecai wanted to see how far he can chuck it, but Rigby wants see what band it was. Mordecai wiped the dirt off and the tape said Solid Bold, and the song ("Summertime Loving, Loving In the Summer (Time)"). Rigby wants to listen it because it was his favorite song back in the day, or his 'jam', but Mordecai said the song 'sucks'. Rigby said that Mordecai enjoyed it too, but only back in junior high school. Rigby still wants to listen to it so Mordecai agrees (only listens to it just so he can take a break).

Mordecai quickly can't stand the song; quite the contrary, Rigby likes it at first, but then he dislikes it shortly after. Mordecai and Rigby then go off to have lunch, but Rigby starts singing the song without him knowing it. As the day goes on, Rigby keeps singing the song, constantly annoying Mordecai. Mordecai cannot stand it anymore, so he decides that he should listen to the band call 'Brain Explosion'. The song puts Rigby to sleep, but then he thinks that if they listen to Summertime Loving, the song will eventually drain out of Rigby's head. Mordecai still can't stand the song and leaves the room quickly, leaving Rigby having to listen to the song over and over.

Eventually, when Mordecai comes back, Rigby said the song is still stuck in his head. Mordecai tries to think of another plan that he should listen to loud objects, failing to work. While Mordecai was thinking of another plan, he hears the Summertime song. He tells Rigby to stop playing the tape, but he turns around and sees him levitating from the ground, waves pouring from his mouth, as if he was possessed to sing the song. Mordecai eventually goes to Skips for help. Skips punches Rigby into a wall to see if it will get out of his head, but Rigby said that it didn't work, and Skips proclaims he can do nothing in a situation like this so said that Rigby should sleep it off.

While Rigby sleeps, he dreams he is being attacked by the Summertime song, but he then gets the tape literally out of his head, and then he wakes up and finds out that the song was no longer in his head. Happy that the song is no longer in his head, Rigby goes and wakes up Mordecai and then, with Rigby telling him that he can no longer hear the song in his head. Mordecai was glad that Summertime Loving was out of Rigby's head and they never have to listen to it again, but the situation has actually gotten worse, as the song did leave Rigby's head, but it manifested itself into a physical form, taking the form of a music tape with arms and legs with big, red sunglasses singing the Summertime song.

Mordecai thinks that if they ignore the song, it will probably get sick of them and leave. But the song doesn't go away, and goes on annoying everyone at the park, especially Benson. Finally, Mordecai and Rigby couldn't take it anymore, and decide that they should write an even more cheesy, catchy, and repetitive song to get rid of it. Mordecai and Rigby ask Pops to distract it. Out in the garage, they come up with the lyrics and Skips appears with his bass Mordecai asks Skips how did he know they were writing a song to get rid of the summertime song. Skips says he knows everything but, he was in the bathroom and overheard them talking about it. Mordecai decides to play guitar, Rigby decides to play tamborine, Skips plays bass, Pops plays keyboard and Muscle Man and High-Five Ghost play trumpet. As the gang starts playing their song (Aw, Snap), they start losing against the Summertime Lovin' song because of its catchier tune. Eventually, Benson arrives to help and shows his amazing skills as a drummer, giving the group "a beat" and more strength. Their "Aw, Snap" song outmatches the Summertime song and it blows up due to extreme pressure. As the group started celebrating victory, they learn the horrible fact that Rigby now has Aw Snap stuck in his head, as he is singing it.