Viggo at Orlando's party

January 16, 2007 -- LOS Angeles was one big party town on the eve of the Golden Globes. Orlando Bloom was a very happy birthday boy as he celebrated his big 3-0 at Teddy's Saturday night, because he had Penelope Cruz by his side.

"She was never further than arm's length from Orlando," a witness told Page Six, even when other women surrounded him on the dance floor.

Leonardo DiCaprio went in the other direction and came without his girlfriend, Israeli model Bar Refaeli. DiCaprio showed up with his "Blood Diamond" co-star, Djimon Hounsou, and "danced until the lights went on."

Bloom's party gathered so many rowdy revelers - including Andy Garcia, Leelee Sobieski, Viggo Mortensen, Samantha Ronson, Vincent Gallo and James Franco - it spilled into the Roosevelt Hotel lobby.