Lohan and Ronson share a laugh during a break from filming Labor Pains in North Hollywood. Plus: DeAnna Pappas, Brody Jenner, Paris Hilton and more  

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FLOWER POWER

Katy Perry's career is in full bloom Thursday during a taping of MTV's FNMTV in Hollywood. The "I Kissed a Girl" singer performed her No. 1 single on the show – scheduled to air on July 18 – while guests like LL Cool J and Chris Daughtry (not pictured) also dropped by.