What will Blair Waldorf and Serena Van Der Woodsen wear to Prom?

Marchesa and Christian Dior.

Leighton Meester as Blair Waldorf, will wear the stunningly mesmerizing Marchesa Spring 2008 black silk tulle ball gown, with gold left appliqués on an upcoming episode, due to air May, 11.

This gown is a real show stopper.

Dita von Teese won a Who Wore It Better? challenge with the designer of this gown, Georgina Chapman, and Penelope Cruz sizzled in this gown for her Vogue December 2007 editorial.

Blake Lively as Serena Van Der Woodsen will wear a pink crystallized Christian Dior Spring 2009 halter gown. You may remember that Eva Mendes wore the same dress to the Art of Elysium 2nd Annual Heaven Gala back in January.

I love Leighton’s ball gown, Blake’s gown is very predictable, and kinda loses it’s appeal without the belt.

Source & Source