Celebrities who go by one name

POSTED: 4:32 PM May 31 2011   UPDATED: 1:00 AM Dec 18 2015

Australian singer Sia, who celebrates her 40th birthday on Dec. 18, is just one of several celebrities who go by one name. In honor of her birthday, take a look at other stars who are too big for a last name.

one-named celebs - Sia
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Jason Merritt/Getty Images for Humane Society

Australian singer Sia, who celebrates her 40th birthday on Dec. 18, is just one of several celebrities who go by one name. In honor of her birthday, take a look at other stars who are too big for a last name.

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