Jennifer Aniston has been keeping a low profile during the pandemic but delighted fans on Wednesday when she reunited with Friends co-star Courteney Cox.MORE: Jennifer Aniston shares exciting news with gorgeous flirty photoThe award-winning actress featured in a star-studded video celebrating Jimmy Kimmel's birthday. In the footage, the best friends were seen taking shots as they wished him many happy returns.What's more, the Along Came Polly actress looked different with a new hair look.