The singer donned a figure-hugging bustier mini-dress as she performed with the Black Eyed Peas (who snagged the gong for Favourite Music Group at the awards). Forget satin, leather or even PVC - the Fergalicious outfit was made of black and multi-coloured Lego pieces. The dress even featured multi-coloured Lego epaulettes in a nod to military style.
Adopting the philosophy that more is more, the singer also piled on the accessories, in the form of multi-coloured Lego bracelets snaking up her wrist.
What do you think of Fergie's playful stage style? Leave a comment and let us know.