The Purple One signs off on a 21-concert tour in London. Plus: Lindsay Lohan, Jessica Alba and more

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DREAM BIRTHDAY

Dreamgirls star Jennifer Hudson helps Chris Brown celebrate his 18th birthday party at Jay-Z's 40/40 Club in New York City on Sunday. Brown arrived at the bash just before midnight and hung out with the crowd before heading upstairs to a VIP room to celebrate with family and friends.