Courteney Cox Is All Smiles . . . Ahead of a Jennifer Cabo Beach Vacation?

Courteney Cox was back on the LA set of Cougar Town again yesterday walking around with the help of a cane. She underwent a minor knee surgery, but it doesn't seem to be slowing down her pace. Courteney's best friend, Jennifer Aniston, is celebrating her 42nd birthday today, and we're taking a look back at her most memorable bikini moments. Jen's been busy promoting her latest film, Just Go With It, hitting the late-night circuit on the East Coast and hanging out with our lucky I'm a Huge Fan winner in LA, and now she's taking a well-deserved break and heading on her annual beach vacation trip to celebrate with friends!