It appears that Lindsay Lohan and Blake Lively had something unexpected in common this week: Both of them dressed as Marilyn Monroe (or undressed, as the case may be with Lohan’s Playboy shoot) to re-create some iconic retro poses. Lively’s contribution to the current Monroe revival comes courtesy of an upcoming dream sequence in Gossip Girl, where she shimmies into a pink dress and elbow-length gloves to do the entire “Diamonds Are a Girl’s Best Friend” number from Gentlemen Prefer Blondes. Chace Crawford taped one of Lively’s impressive long takes off the set monitor and uploaded it online; enjoy as he provides salient commentary (“Penn’s face!”) and stay tuned for two surprise endings, one that should please any and all Dair shippers, and the other best left unspoiled. UPDATE: Sorry, folks! Gossip Girl brass has pulled the clip due to copyright issues.