Celeb Double Takes!

From Ryan Reynolds to Katy Perry, stars strike a pose alongside their look-alikes

CARRIE UNDERWOOD

Which country queen is the real chart-topper? For the record, she's on the left. "I had to stand still for a long time while they did their thing," Underwood said of her uncanny look-alike, which debuted at New York's Madame Tussauds in October 2008.