The Good Morning Britain beauty, 43, turned heads in a stunning floral number which featured a delicate turquoise tulle skirt.
Flashing a peek at her assets in the uncharacteristically plunging number, she posed for photographers at the glamorous event, making the most of her dramatic dress by playing with the light layers.
Charlotte Hawkins beamed for the cameras as she showcased her slender figure in the pretty gown, which hugged her svelte frame by cinching in at the waist.
She wore her golden tresses pulled back in a stylish up ‘do and left a few strands loose, framing her face in carefully coiffed curls.
Her make-up was polished for the star-studded bash, with subtle smokey eyes and a slick of rosy pink lipstick.
Meanwhile, host Myleene Klass, 40, also stood out in a breathtaking gold gown.
The semi-sheer number fell to the floor in a fishtail style and boasted slinky spaghetti straps and a plunging neckline.
Brunette bombshell Myleene could be seen highlighting her gym-honed hourglass curves in the tight-fitting dress, posing with one hand on her hip.
She wore her chocolate tresses in a loose hairstyle, curled into sleek ringlets.
The singer flashed a glimpse of cleavage in the revealing garment before making her way into the venue.
Another sexy star to grace the event was former Love Island contestant Montana Brown, 22.
Putting her lithe figure on full display in a showstopping gold sequinned frock, she flashed her slender pins with a jaw-dropping thigh-high split.
Montana showed off her enviably trim physique in the glittering piece, which left little to the imagination as she posed for photographers.
She opted for a bold make-up look with deep purple lipstick and cat’s eye liner.
Meanwhile, she swept her brunette tresses back in a sophisticated up ‘do.
Myleene will be hosting the ceremony alongside her Classic FM co-star Alexander Armstrong.
Italian pianist Beatrice Rana, Pretty Yende and Andrea Bocelli and Bryn Terfel will all be performing, as well as former Britain’s Got Talent winner Tokyo Myers, who will take to the stage with the Royal Philharmonic Orchestra.
Andrew Lloyd Webber is set to receive the Special Recognition Award for Musical Theatre and Education, while Dame Very Lynn has been announced as the recipient of the Lifetime Achievement Award.
Speaking about the Classic BRITs, Myleene told Music Week: “I don’t think it should’ve ever gone away so I’m sure happy that it’s back with a bang.
“I think that it’s a phenomenal platform for classical artists,” she added. “The Classic BRITs gives you an introduction to the wonderful world of classical music, but with the best artists.”