After being treated for dehydration, Richie heads out to dinner with beau Joel Madden in Beverly Hills. Plus: Madonna & Guy, Tom & Katie and more


In case there is any doubt who's headlining this party, Kevin Federline shows off his top billing at The Beatles Revolution Lounge in the Mirage Hotel & Casino in Las Vegas on Sunday. It's a rare appearance for the aspiring rapper, who has been in daddy mode with sons Sean Preston, 18 months, and Jayden James, 6 months, since estranged wife Britney Spears checked into rehab.

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