The pop star continues indulging in her nesting instincts in L.A. Plus: Solange Knowles, Hayden Panettiere and more

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ROCK THE VOTE

Making good on her promise, Hayden Panettiere registers to vote at the Declare Yourself offices in Beverly Hills on her 18th birthday Tuesday. But civic duty wasn't the only agenda on her big day – the Heroes star later celebrated at a bash thrown in her honor.

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