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Bell and Duhamel jump into a fountain on the Italian set of their movie, When in Rome. Plus: Andy Roddick, Beyoncé & Solange, Justin Timberlake and more

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BELTING IT OUT

Mayer's ex Jessica Simpson makes a surprise appearance at the B-93 Birthday Bash in Ionia, Mich., on Sunday. The singer treated the crowd to a performance of her new country single, "Come On Over."

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Credit: The Grand Rapids Press/AP

Published: Tuesday Jun 24, 2008 | 05:00 PM EDT

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