Mum-of-one Giovanna and her husband of two years gave fans an inside look at their fun-filled evening, sharing numerous snaps on Instagram.
CLICK ON PHOTO FOR FULL GALLERY OF TOM AND GIOVANNA'S EVENING
Before the pair set off to London's One Mayfair, Tom posted a photo of Giovanna getting ready with the caption: "The Mrs has her rollers in."
Tom Fletcher's wife Giovanna posts video of his reaction to John Lewis Christmas advert
Showing off the results of her hair styling, Giovanna then uploaded a selfie, writing: "Cosmo awards ready! #TheCosmos."
The McBusted boys were celebrating winning the evening's 'Men of the Year' award.
"We are ULTIMATE!!! Thanks Cosmo!" wrote Tom along with a picture of himself holding the glass award against his face.
While Giovanna supported her musician husband, Danny Jones was without his wife of four months, Georgia Horsely.
Former Miss England Georgia was busy hosting The UK Lingerie Awards at London's Freemason's Hall.
While she couldn't be at the Cosmos, however, the 27-year-old spoke of her pride on Twitter.
"Congrats to my gorgeous hubby @itsDannyJones for winning the #MenOfTheYearAward at the @CosmopolitanUK Awards," she wrote. "#Proud #CosmoAwards."