The Voice crowned contestant Jermaine Paul as the Season 2 winner last night. However, it was Justin Bieber who stole the show with a killer performance of his new single "Boyfriend."

Biebs even had mentor Christina Aguilera nodding her head to the beat!

As for winner Jermaine Paul, he has spent most of his career as a backup singer for Alicia Keys. Looks like he's finally in the spotlight.

Click thru to watch his amazing performance of "Open Arms."