Kelly Osbourne at the 2010 Emmy Awards (PHOTOS)

A svelte Kelly Osbourne stepped out in classic black cap-sleeved gown at the 2010 Emmy Awards on Sunday. The former Dancing with the Stars contestant said she hit the treadmill (hard!) to look that good in the dress by designer Tony Ward.

Click here for more shots of Kelly’s red carpet glamness — and weigh in on her look in the comments.

More Emmys 2010 Highlights: Kelly Osbourne Pics | Jane Lynch Pics | Maria Menounos Pics | Sarah Hyland Pics | Jimmy Fallon Pics | Lo Bosworth Pics | Stephanie Pratt Pics | Carrie Preston Pics | Julie Benz Pics