Dancing With The Stars

Demi Lovato Performs “Heart Attack” on Dancing With the Stars 2013

The key to a memorable prom night is a stellar performance, and chart-topper Demi Lovato returned to Dancing With the Stars to show the Season 16 contestants how to really put on a show.

The former Disney startlet performed her latest hit single "Heart Attack" while troupe members — including newbie Witney Carson! — danced and twirled around her. It was a magical moment fit for a Prom King and Queen (hey, were Zendaya and Jacoby Jones sharing a dance off-camera?).

"Heart Attack" is already certified gold in the U.S., selling over 500,000 copies, so it's only a matter of time before Demi has a smash hit platinum single on her hands. Did we mention her fourth album DEMI hits shelves in May 2013? We're counting down the days, Dem!

What did you think of Demi's performance? Sound off in the comments below!