Demi Lovato

Demi expertly took on Cher, Christina Aguilera, and Fetty Wap as Jimmy fought back with his best Louis Armstrong and Dave Matthews.

See the stars hitting the red carpet at this year's event, airing live on February 15.

Hip-hop's presence will be felt in the upcoming film 'Zoolander 2' as Kanye West and ASAP Rocky make cameos in the movie.

Mother Monster's got the magic pipes.

Lovato proved to be quite a draw for young voters at a rally for Democratic nominee Hillary Clinton.

Demi Lovato is beautiful. She's talented. She's got a great sense of humor...and she's really resourceful. Ya gotta be 'Confident' to Instagram a pic of yourself with tampons shoved in your nose.   My friend Stevie would fare well with this method since she's always shoving tissues up her nose and walking around with a virtual flag hanging out of her face! ...

If you want to see how Selena Gomez tackles a cheesecake featuring a renegade ladyfinger, you're in luck!

Demi fearlessly took on fellow powerhouse Adele when performing her comeback hit “Hello” during a recent set.

Donald Trump hosts tonight amid a flurry of backlash.

The duo called Lovato out on Twitter for some very familiar-sounding beats on 'Stars.'

From Miley Cyrus, to Ariana Grande, to Nicki Minaj, we take a look at our favorite 2015 celebrity Halloween costumes.

The two longtime friends announced dates for a 2016 tour through the U.S. and Canada this morning (October 26).