Steve Granitz/WireImage.com 1 / 4
Steve Granitz/WireImage.com 1 / 4

Jennifer Aniston reportedly flew several famous friends, including Gerard Butler, her hunky co-star in 'The Bounty Hunter,' to Los Cabos, Mexico to celebrate her upcoming birthday.

Aniston, who turns 41 on Feb. 11, retreated to a Los Cabos resort on Thursday night with pals including Butler, Courteney Cox, her husband David Arquette, and Sheryl Crow (who also celebrates a Feb. 11 b-day), says People.com. The site says the A-list group is staying in a waterfront villa.

Check out playful pics of Aniston and Butler together at the Golden Globes. Then, catch them in their new romantic comedy 'The Bounty Hunter,' in theaters March 19.