Actress Dianna Agron arrives at the Vanity Fair Oscar party hosted by Graydon Carter held at Sunset Tower on February 27, 2011 in West Hollywood, California. (Getty Images)more pics » Dianna Agron (Getty Images) Dianna Agron
, star of Glee
and the new flick I Am Number Four
, walked the red carpet at the Vanity Fair Oscars after party last night in this plunging blue gown.
The starlet paired the stunning J. Mendel gown with Salvatore Ferragamo peep-toe pumps and some simple accessories. The chiffon gown was a great color on the actress, who hung out with co-star Lea Michele
during the party.
Who else was at the party? Who wasn't is the better question. Pretty much all of Hollywood's hottest stars showed up for at least the after party in their Sunday best -- including Justin Bieber and Selena Gomez, hand-in-hand!
See more Dianna Agron pics here: Best Dressed at the 2011 Oscars
If there's any night Hollywood gets truly glamorous, it's Oscars night. See which stars were big winners on the red carpet at the 2011 Academy Awards!
The 83rd annual Academy Awards are as much about fashion as they are about movies. See if you can guess who was best dressed on entertainment's biggest night.