Demi Lovato: MTV's 10 On Top Co-Host!

Demi Lovato shares a happy wave with Lenay Dunn as she co-hosts MTV’s 10 on Top in a segment airing Saturday (September 24).

The 19-year-old helped Lenay count down the week’s top 10 most texted and talked about young celebs at the moment.

The episode will also include Taylor Lautner, the cast from Vampire Diaries, and Victoria Justice.

Lenay said this about her co-host, “Demi is so sweet! And we both came to the important agreement that classic Disney Movie Cartoon Musicals are the best musicals ever.”

10 on Top airs Saturday, September 24th @ 11:30AM ET/PT on MTV.