Who is Rebel Wilson?

The host of the 2013 MTV Movie Awards is none other than Rebel Wilson. While she is hilariously funny, I can't help but think her name might lead to a chorus of..."Who?"

For the curious minds out there Rebel Wilson shot to fame last year in the musical hit Picture Perfect. If you're curious as to why, see below. 

The 27-year-old Australian actress has only been in the U.S. for a few years. Other big credits to her name include roles in a role in Bridesmaids (Brynn), Bachelorette (Becky), and What to Expect When You're Expecting (Janice.)