The colourful duo cut stylish figures as they hit London's Covent Garden.
Kelly was a pastel delight in a cute outfit for the launch, teaming a mint green crop with a black and white patterned skirt, pointed heels and a green quilted bag. The star complemented her purple hair with a soft pink lippie and a hint of blue around her eyes.
As for her mumma, the legendary Mrs O oozed Hollywood glamour for her monochrome look. Sharon wore a black top and trousers with a tailored white coat, accessorsing with metallic heels, oversized sunnies and her famous red locks.
The Osbourne girls were clearly looking forward to launching their latest project. Sharing a snap from their mum-daughter sleepover the night before, Kelly posted a snap of the pair cuddled up in bed but unable to sleep!
She wrote: "Having a sleep over with my Mumma! We are so excited about the UK @maccosmetics launch tomorrow we can't sleep! @sharonosbourne"
And having had a sneak peek to see what's in store for their range, we too are more than a little excited!
But it seems we're not the only ones, even Ozzy Osbourne himself is eyeing up his favourite products from his family's collection.
Tweeting earlier today, the star wrote: "Now my girls have their own makeup line. How about some black eyeliner for me?"
You better snap it up quickly Ozzy as we reckon these girls may have a bestseller on their hands!
Sharon and Kelly's range for MAC will be available in all stores from 12 June.
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