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

12 of 17

SNAP HAPPY

Justin Timberlake hits the streets of Paris – with a throng of fans following his every move – on Monday. The singer, who's in the City of Light to launch a new Givenchy fragrance, lunched on steak frites at a café and caused a mini-riot as he headed to an Yves Saint Laurent store.

Read more about Justin's Paris adventure in Caught in the Act!