Rap Bear is a character who appears in "Billy's Bucket List." When Finn defeats him in the rap battle, he cries, saying, "How can I be Rap Bear if I'm not the best?" Finn reassures him that he really is the best and that Rap Bear is like a hero to him. Rap Bear thanks him, and they embrace.
Rap Bear appears again in the episode "Son of Rap Bear," but he is wheelchair bound due to his son rapping his limbs off.