1 of 7
Relatively tame for Gaga standards, the black robot-esque dress got an extra dose of funky in the form of sheer panels, a lace face mask and, yes, a scepter.
2 of 7
The award for best Halloween idea (or “egg moment of the year,” as Kelly Osbourne put it) goes to Nicki, who donned a shiny red number complete with a hood and gloves, and walked the carpet arm-in-arm with an escort dressed as the Pope.
3 of 7
Leaving little to the imagination, the stunned in an orange Jean Paul Gaultier Haute Couture lace dress that showcased her retro black two-piece – not to mention, a super-toned body!
4 of 7
pretty Elie Saab gown with delicate detailing and mini-train left many feeling blue – maybe the matchy-matchy coif took the look over the top?
5 of 7
ditched her plunging black gown to perform in an equally revealing getup: high-waisted short-shorts over black tights and combat boots, plus a long-sleeve, ab-baring crop top.
6 of 7
CORINNE BAILEY RAE
The singer took the phrase “go big or go home” literally, selecting a Christian Siriano dress with seriously voluminous ruffles, skyscraper heels and piled-high hair.
7 of 7
Avoiding the potential embarrassment of showing up in the same dress as someone else, the Swedish pop star selected an oversized white tee, tucked into a mullet-style white skirt and platform work boots.