The Liberty X singer was spotted outside the event, held by Malibu Rum to celebrate National Pina Colada Day, and looked toned and trim in her fitted pink and white dress.
Michelle's sophisticated frock featured pretty lace detailing around the shoulders and bust and is by Tempest Style. But at £99 from Pink Tiger, it is definitely one for a special occasion!
Although the party Michelle was attending was themed around one of the most iconic summer cocktails, unfortunately the weather last night wasn't playing ball!
During her car journey to DISCO in London's Soho, the mum-of-two - who gave birth to son AJ in February - shared a selfie but seemed pretty miserable about the pouring rain.
"On way to @MalibuUK party - Wish this rain would stop or my dress is gonna get wet," she told her followers.
You can't beat the British summertime, eh Michelle?!
Pussycat Doll Kimberly Wyatt DJ'd at the Pina Colada party: check out a behind-the-scenes video here!