Isla Fisher  and Sacha Baron Cohen 's little Olive celebrated her first birthday on Sunday with all of her A-List friends. Party guests including Jennifer Aniston , the Cox-Arquettes with Coco, Ellen DeGeneres , Portia de Rossi , Ben Stiller , and Keanu Reeves  came together in the Fisher-Cohen backyard. Seriously, talk about already having some clout in Hollywood at one. The soiree had a country western theme, which Isla and Sacha got right into with her braids and plaid and his bandana. From Hawaii group vacations , frequent events together and more, this group of heavy hitters always seem to be having a good time and with the comedic talent between them, there are sure to be a lot of laughs.
To see over 20 more photos of the party just .
Images include: Jennifer Aniston, Isla Fisher, Ben Stiller, Jonah Hill , Keanu Reeves, Courteney Cox , Ellen DeGeneres, Portia de Rossi, Coco Arquette
Source  and Fame