Sharon and Ozzy Osbourne's youngest daughter Kelly Osbourne hasn't had the easiest time coming of age in the spotlight. From criticism of her teenage antics on The Osbournes to hurtful comments about her weight, it is safe to say Kelly O wasn't exactly welcomed with open arms by the celebrity press. But, after a spell on Dancing with the Stars in the US and the dramatic weight loss the show inspired, Kelly has suddenly found herself as something of an it girl.
Check out the gallery below to see the best outfits Kelly O has ever sported on the red carpet.
The Perfect 10: Kelly Osbourne
What's black and white and red all over? Kelly Osbourne on the red carpet at the Tommy Hilfiger 25th anniversary party in 2010. She may be all grown up but her quiff proved she still likes a little touch of rock 'n roll.
The Perfect 10: Kelly Osbourne
Her appearance at the 2010 Emmy Awards made Kelly Osbourne's dramatic weight loss very obvious. The star showed off her slim new figure in this black Tony Ward Couture gown.
The Perfect 10: Kelly Osbourne
After making a splash in black on the red carpet, Osbourne scored another fashion win when she changed into this white gown to hit the parties on Emmy night. Standing next to famously curvy Kim Kardashian in a matching dress? Now that takes body confidence!
The Perfect 10: Kelly Osbourne
A newly slim Kelly Osbourne hit the catwalk during NYC Fashion Week a/w 2010 in this bright red mini as part of Fashion for Relief.
The Perfect 10: Kelly Osbourne
Kelly O scored a perfect 10 in this adorable LBD at a Fendi party in 2010.
The Perfect 10: Kelly Osbourne
Marchesa was the obvious choice for Kelly when she attended the designer's show during Fashion Week s/s 2011.
The Perfect 10: Kelly Osbourne
We're not saying the colour doesn't suit her, but Osbourne didn't really need to go grey to prove she'd grown up. We're pretty sure the sophisticated red cocktail dress she wore to the garden party hosted by the mayor for LA Pride in 2010 would have done the trick on its own!
The Perfect 10: Kelly Osbourne
Osbourned looked simply adorable at the opening party for Odd Molly's flagship store in 2010. This summer dress went perfectly with the star's petite frame and retro curls.
The Perfect 10: Kelly Osbourne
Kelly posed with mom Sharon at the 2010 Elton John AIDS Foundation Oscar Party. Her lavender locks and vintage inspired Sue Wong dress got her a lot of attention on the star studded red carpet.
The Perfect 10: Kelly Osbourne
Only one month into Dancing with the Stars and Kelly Osbourne's body had already begun to change. The star showed off her evolving shape in this LBD by D&G at the Teen Vogue Young Hollywood party in 2009.