Nobody throws a party quite like Cameron Diaz!

The Charlie's Angels actress, 39, feted her pregnant pal and former costar, Drew Barrymore, 37, with a coed backyard baby shower at her home in L.A. August 4, sources tell the new issue of Us Weekly.

"Kids were jumping in a bouncy castle," a source says of the shindig, where 50 guests splashed around in the pool and noshed on chips and guacamole. Barrymore's husband of two months, Will Kopelman, 35, also attended the event.

For more details on Barrymore's sweet baby shower, watch this week's Hot Stuff video, as explained by Us Weekly Senior Editor Ian Drew and special guest, Love & Hip Hop Atlanta's Karlie Redd!

Also in the roundup: Jennifer Aniston wants a photo op with Angelina Jolie, MTV execs hope Chris Brown and Drake fight over Rihanna at the Video Music Awards, and much more!