Demi Lovato

Demi Lovato will host this year's Teen Choice Awards, Fox announced Monday.

This will be the singer and X Factor judge's first time hosting the show. She is also nominated for four awards, including Choice Summer Song for "Give Your Heart a Break."

Check out photos of Demi Lovato

Justin Bieber, Carly Rae Jepsen, Flo Rida and No Doubt are scheduled to perform, with Pauly D set to be the night's DJ.  Cat Deeley will join the presenter lineup that includes Miley Cyrus, Zooey Deschanel and Ellen DeGeneres.

The Teen Choice Awards will air on Sunday, July 22 at 8/7c on Fox.