This Week's Hottest Hair

Long soft waves highlight the singer’s blonde hue at the launch of her fragrance Fancy at Macy’s in Chicago.

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Talk about a bombshell! The singer shows how sexy is done, amping up the volume on her tousled waves for the L.A. premiere of The Curious Case of Benjamin Button.

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The actress makes over her look with a brighter blonde shade, new bangs and sexy layers for the New York premiere of The Reader.

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Adding a little dazzle to her updo, the Benjamin Button actress frames her face with soft ringlets to receive a star on the Hollywood Walk of Fame.

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The star’s sleek hair and center part make her face the focus for an appearance on The Late Show with David Letterman.

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The young actress tries out a wide part, side-swept bangs and a touch of texture for the L.A. premiere of The Tale of Despereaux.

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The Heroes star catches a wave, curling back her long tresses for a hotel opening in Beverly Hills.

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The actress lets down her famous raven hair at the UNICEF Snowflake Ball in N.Y.C.

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Her super-thick locks are some of Hollywood’s hottest – and she makes the most of them at the Nothing but the Truth screening in New York.

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Putting her own spin on the season’s fuller coifs for the London premiere of her film The Spirit, the actress adds volume at the crown that flows into cascading curls.

See last week’s hottest hair!

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