Demi Lovato WINS at MuchMusic Video Awards 2013!

Demi Lovato keeps it chic at the 2013 MuchMusic Video Awards held at MuchMusic HQ on Sunday evening (June 16) in Toronto, Canada.

The 20-year-old singer wore a Saint Laurent dress and heels for the event.

PHOTOS: Check out the latest pics of Demi Lovato

Earlier in the day, Demi was spotted rehearsing for her performance for the show.

“So honored to have won International Video of The Year!!! MY LOVATICS are the BEST!!! #MMVA Excited to perform soon!!” Demi tweeted in thanks.

Congrats, Demi!