1. Christina Milian
Christina Milian dressed as Dorothy of the Wizard of Oz at Hpnotiq's Halloween Party.
2. Christina Aguilera
Christina Aguilera dressed as the Slutty Nurse
3. Holly Madison
Holly Madison "dressed" as a playboy bunny, next to her boyfriend Hugh Hefner
4. Heidi Klum
Klum, dressed as a witch accessorized with skeleton bones and fangs, hosts her annual Halloween party at Marquee nightclub in New York City.
5. Lindsay Lohan
Lindsay Lohan as a Slutty Fire Fighter at Marquee nightclub in New York City.
6. Ann Hathaway
4. Heidi Klum
Klum, dressed as a witch accessorized with skeleton bones and fangs, hosts her annual Halloween party at Marquee nightclub in New York City.
5. Lindsay Lohan
Lindsay Lohan as a Slutty Fire Fighter at Marquee nightclub in New York City.6. Ann Hathaway
Ann Hathaway dressed as Cleopatra costume at Heidi Klum's annual Halloween party at Marquee nightclub in New York City.
7. Sean P. Diddy Combs
Sean P. Diddy Combs as a gladiator, standing on his Rolls Royce at Mariah Carey's Halloween party at Cain nightclub in NYC.8. Kyle McLachlan
Kyle McLachlan as a dead golfer at Heidi Klum's Halloween Party.
9. Mariah Carey
Mariah Carey as a Mermaid in London10. Paris Hilton
Paris Hilton, dressed as a Playboy Bunny, arriving at the Halloween Playboy Mansion Party.
