Demi Lovato and Nick Jonas to Co-Judge on 'X-Factor'; Demi to Perform at MTV VMA Preshow Too! (CLICKWORTHY!)

Add another awesome thing to Demi Lovato's to-do list! She just announced that she'll be performing at the MTV VMA PRE-show! Get all of the deets here! [MTV]

So freakin excited to perform at the @mtv VMA Pre-Show! I can't believe it!!! on.mtv.com/OFoAQH

- demetria lovato (@ddlovato) August 28, 2012

Nick Jonas will be giving Demi Lovato a hand on X-Factor! [JustJaredJr]

Justin Bieber will be on X-Factor too! [TMZ]






How did Katy Perry get over John Mayer? Click here to find out!

Oh geez, Rihanna is beefing with two celebs on Twitter...can you guess who? [AOL Music]

Emma Stone and Andrew Garfield are probably the cutest couple ever right now, don't ya think? [JustJaredJr]

Peep the new Glee Season Four pics below!