Hayden and Stephen! Zac and Vanessa! Ashlee and Pete! See who's heating up the season. By Aaron Parsley
Credit: Marion Curtis/Startraks
Updated: Monday Aug 06, 2007 | 06:00 AM EDT
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Ashlee Simpson kicks off the season with a 28th birthday bash for her Fall Out Boy, Pete Wentz, at New York hot spot Angels and Kings. Since then, they've made the rounds – from Beverly Hills to Miami and back East in Watermill, N.Y.
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