For the biggest night in Hollywood, these glamorous gals put their best dress forward as they hit the splashiest and most fiercely guarded parties of the year. Lohan, Miller, and Klum mingled with Madonna, Vince Vaughn, and John Travolta at the Vanity Fair party, while Stone, Sheridan, and Richie flirted the night away at Elton John’s 14th annual gathering. And the award for best party girl goes to …. —Tracey Anderson
