Leona Lewis Debuts Glam New Look on X Factor

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She wowed fans (and Simon Cowell!) with her amazing vocals back in 2006, but when she returned to The X Factor stage for Thursday night's finale episode, it was Leona Lewis' hair and makeup that really stole the spotlight.

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The 26-year-old British singer, who performed a cover of Snow Patrol's "Run," stunned the audience with her sophisticated appearance. She wore a simple, black halter dress with subtle cut-outs, vibrant red lipstick and her hair slicked back in a sleek ponytail.

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Lewis has been slammed in the past for her out-there style, which includes colorful midriff-revealing tops of her own design and face art (she was spotted last fall with a tiny star painted on to the top of her cheek).

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This week, Lewis released Hurt: The EP, which includes covers of Nine Inch Nails, Goo Goo Dolls and Counting Crows.

Tell Us: What do you think of the pop star’s latest look?