Demi Lovato [1] performed at the KISS FM Jingle Ball hosted by iHeartRadio in her hometown of Dallas on Dec. 1, and as expected, she totally stole the show. The "Confident" singer rocked a sexy red bodysuit, fishnet tights, and a black fur vest for an edgy-yet-chic outfit. She performed songs off her new hit album [2], including — for the very first time — "Yes," which is a powerhouse anthem about committing [3] to the one you love.

Demi's longtime boyfriend, Wilmer Valderrama [4], took to Instagram to express how proud he is, captioning a backstage photo [5]: "Ok . . . So . . . She didn't just closed . . . She made it HER concert!!! @ddlovato you are the scariest artist to follow. Haha! Proud of you angel. #iheartradio." Keep scrolling to see more pictures of Demi's night at the Jingle Ball and watch her insanely good performance of her new song, then check out her gorgeous style evolution [6].

Yes- Demi Lovato- Dallas Jingle Ball 2015