Richie makes a stylish statement with colorful glasses while out in L.A. Plus: Matt Damon, Cameron Diaz, Jennifer Aniston and more

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WELCOME WAGON

Jennifer Aniston offers a friendly wave before visiting the Late Show with David Letterman in New York City on Wednesday. The actress – who recently told PEOPLE that she's "very excited" about turning 40 (on Feb. 11) – chatted with Dave about her new comedy Marley & Me, out Christmas Day.