Justin Bieber is holding down the hosting duties on Saturday Night Live this evening, showing off not only his musical abilities, but also his comedic talents. Biebs did his thing during the opening monologue, which came in the form of a Valentine's Day slow song that featured a guest appearance by Whoopi Golberg, and also during various sketches, including one where he played a stoned runaway, and another that co-starred a gang of Bieber look-a-like decoys.

Then, Justin took the stage as the night's musical guest, performing an acoustic version of "As Long As You Love Me," which included a melodic rendition of Big Sean's verse. Watch above, and stay tuned for more clips from tonight.

[via Yardie]