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


Beyoncé Knowles and her sister hit the dance floor during a party to celebrate Solange's 22nd birthday at a Hollywood Hills mansion, where Lindsay Lohan stopped by, Samantha Ronson played music and the champagne flowed.