Kelly Osbourne sent fans into a frenzy as she showed off her weight loss in a baggy white T-shirt featuring lacy black lingerie.

The 39-year-old took to Instagram to share some snaps after a long day of filming for her family's The Osbournes Podcast. "Bra off, hair up, sweats on! WHAT A DAY!" Kelly captioned the post.

In the first picture, she showed off her chiseled cheekbones with a close-up selfie. Kelly's makeup was perfectly contoured and she went for a bold winged eyeliner look. Kelly styled her hair into an updo and accessorised with a diamond choker necklace and dainty silver earrings.

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Kelly Osbourne looked much slimmer in the pictures (
Image:
Kelly Osbourne/Instagram)
Fans were loving the post (
Image:
Kelly Osbourne/Instagram)

In another snap, Kelly showed off her outfit. The T-shirt draped over her tiny frame and she added a racy element to the look as her top featured a black and white underwear design.

Fans went wild for the pictures, with one person writing: "Love her and she looks amazing." Another fan commented: "Kelly is so very beautiful," while a third person said: "Wow, you look like your beautiful mother....Gorgeous."

"You look so stunning kelly!!" someone else commented. A fifth fan added: "Literally so gorgeous!!! Love seeing your post!"

She's lost a lot of weight over the years (
Image:
Kelly Osbourne/Instagram)
She'd been filming for her family podcast (
Image:
Getty Images)

Kelly's new post comes after she was recently slammed for saying the only people hating on celebrities using the diabetes drug Ozempic for weight loss "can't afford it". Speaking to E! News, she said: "I think it's amazing.

"There are a million ways to lose weight why not do it through something that isn't as boring as working out? People hate on it because they want to do it and the people who hate on it the most are the people who are secretly doing it or p****d off that they can't afford it. Unfortunately, right now it's something that is very expensive, but it eventually won't be because it actually works."

Ozempic can cost $25 a month for qualified patients under insurance. However, it costs between $600 and $1,300 for a monthly supply of four weekly pens out-of-pocket.

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