It's a huge week for Justin Bieber and his fans. The pop star will be making two appearances on NBC this week. Tonight (April 8) Justin is a guest and performing on the Late Show with Jimmy Fallon. Justin will perform live with The Roots and hang out with 30 Rock star Tina Fey.
Then on Saturday, Justin is taking over Saturday Night Live! Justin has been rehearsing all week for his performance on Saturday and even tweeted about it, "time for SNL rehearsal...little singing little laughing."
To get you ready for all this Bieber madness check out this hilarious clip of Justin from Funny or Die.
Are you going to stay up late to see Justin???