6. Okay, this is a problematic situation. Justin Bieber, who once had a hamster named Pac that he gifted to a Belieber, was very briefly BFFs with Mally, a capuchin monkey. He took the simian on tour and it was quarantined in Germany since The Biebs did not have the proper paperwork. The authorities tried to get The Biebs to properly retrieve (and pay for) his pet but he didn't. Mally was then transferred to a zoo. It was really irresponsible pet ownership on Bieber's part, since Mally is a living, breathing being.