See Justin Bieber Horrified by The Lonely Island in the 100th 'SNL' Digital Short [Video]

Over the history of the SNL Digital Short, we have seen The Lonely Island (Andy Samberg, Akiva Schaffer and Jorma Taccone) come up with some crazy stuff, including songs about being on a boat, singing with Michael Bolton about Jack Sparrow, or... well, there's no delicate way to put it... ejaculating in their pants.

So you can bet that they had something big planned for the 100th SNL Digital Short, which aired over the weekend on an episode of "Saturday Night Live" that had Will Ferrell hosting.

The video has pop star Justin Bieber sitting in for Akiva, and at first he's handling things pretty well. But then, as they are known to do, the boys take things in a slightly NSFW direction, talking about how they're going to congratulate themselves later tonight.  Bieber quickly wishes he hadn't agreed to get on board with this.

Other stars who are a little more excited to be there include: Natalie Portman, who rapped back in the day for the boys; Michael Bolton, who is still singing about "Pirates of the Caribbean"; and Usher, who has never been in a Digital Short before, but managed to sneak into this one.

Check out the 100th SNL Digital Short below: