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Panettiere checks out the newly blonde Rumer Willis's 'do. Plus: Justin Timberlake, Hilary Duff and more

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BIRTHDAY GIRL

A day before turning the big 2-0, evening host Hilary Duff hangs out with Billy Ray and Miley Cyrus at the 2007 Spirit Of Life Awards (benefiting City of Hope) Thursday at West Hollywood's Pacific Design Center. The actress then hopped a red-eye back to New York to have an early birthday dinner with beau Mike Comrie.

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