Kate Moss as David Bowie
The supermodel posed for "French Vogue" as Ziggy Stardust.
Calista Flockhart as Audrey Hepburn
With a little eyebrow pencil, Flockhart turned into Hepburn from "Breakfast at Tiffany's."
Marilyn Monroe as Theda Bara
"LIFE" captured Monroe as Cleopatra in 1958. The role was originally played by the silent film star Theda Bara.
Charlie Chaplin as Napoleon Bonaparte
Chaplin dressed as Bonaparte at a costume party thrown by Randolph Hearst. Chaplin's wife, of course, dressed as Josephine.
Sting as Napoleon Bonaparte
Chaplin wasn't the only fan of Napoleon. Sting also imitated the French emperor.
Bugs Bunny as Groucho Marx
"Of course you realize, this means war!"
Martha Stewart as Veronica Lake
No photoshop here. Photographed for Kevyn Aucoin's "Face Forward," Martha Stewart was transformed into the '40s beauty.
Cher as Elvis
Cher dressed as the King for VH1's Divas concert.
Kurt Cobain as Barney
The guitar totally gives away Barney's hidden rock identity.
Winona Ryder as Elizabeth Taylor
Ever wonder what celebrities might look like as normal people? Click here.
Jerry Seinfeld as Elvis Presley
Rolling Stone shot two Seinfeld covers — early Elvis and fat Elvis.
15 time-honored love songs that are actually kinda creepy. Just listen.
Fun (and some not-so-fun) facts behind the most surprising and talked-about instants in Academy Award history
The toughest and most tabloid-worthy celebrity breakups of all time
20 classic movies that strangely failed to win the Academy Award for Best Picture
22 Academy Award winners reveal what they've done with the coveted statuette
Celebrating the all-time sexiest—and most quotable—supermodel on her 51st birthday