The star looked immaculate hours earlier as she walked the red carpet before the ceremony at London’s O2 Arena.
Abbey made sure everyone was talking about her for all the right reasons as she came close to a wardrobe malfunction in her chest-skimming dress.
But the night’s antics had clearly taken its toll when the bash wrapped up at around 3am.
She tweeted a picture of her knackered tights with the caption: “Uh oh.”
Abbey spent the night hanging off footballer husband Peter Crouch, rarely letting go of him or leaving his side.
She was also did some networking with outgoing BRITs hosts Ant and Dec near the bash’s Ciroc premium vodka bar, while other VIPs including Jess Glynne, Dermot O’Leary, Caroline Flack and Kit Harington partied around her.
Abbey also cosied up to fellow catwalk favourite and Pixie Lott’s boyfriend Oliver Cheshire.
But while Abbey seemed to have overindulged on alcohol, she made efforts to give up another vice.
The star was seen puffing on an e-cigarette inside the bash in an apparent attempt to kick the habit.