The singer gets giddy after dinner out in London. Plus: Jennifer Garner, Angelina Jolie, Bradley Cooper and more

TRUE BLUE

Trading Nate's private-school uniform for a more casual look, Chace Crawford gets back to work Monday on season three of Gossip Girl at a New York City heliport. PEOPLE's reigning Hottest Bachelor will be joined this fall by a new costar: Hilary Duff!