The 'Smile' singer seemed to be channelling Shrek as she made her way to the UNICEF Halloween Ball held at One Mayfair, where she performed alongside Robbie Williams.
Lily glittered in a sequin halterneck dress paired with stand-out leopard print tights and towering wedges.
Her arms, chest and face were painted forest green to match her glitzy frock, and she went-all out by adding pale ogre-like spots.
Tons of sparkling gems adorned her peepers, while her glimmering bobble headband topped off her extraterrestrial look.
And she even managed to find a fancy quilted Chanel bag to match her outfit - impressive!
The mother-of-three packed a punch with her nails too, rocking ombre pointed talons covered in eye-catching embellishment.
Now that's dedication!
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