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Lady Gaga, Anna Farris

Michael Buckner/Getty Images; Mark Von Holden/WireImage for Express

Are pigs flying? Because we never thought we'd see the day when Lady Gaga would rock an outfit so "normal" that another celeb would also be caught wearing it.

But just over the weekend at the iHeartRadio music festival in Las Vegas, the pop star was channeling Audrey Hepburn's Holly Golightly character in a black Moschino peplum dress with matching black pumps, leather gloves, clutch and sunglasses. A chunky necklace and matching earrings finished off her head-to-toe Old Hollywood look...

Three days later, actress Anna Faris picked the peplum dress for her visit to the Late Show With David Letterman to promote her new rom-com What's Your Number?  in New York City. The funnygal paired it with sky-high Christian Louboutin ankle-strap cap-toe heels, smoky eyes and shiny, luscious locks.

So which celeb rocks it better, the Mother Monster or the erstwhile House Bunny? Weigh in!

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