Kate Hudson, Gwyneth, Sean Penn: Happy Birthday to Hollywood's Most Popular Agent!!!

The most popular agent in town attracted more celebs than the Golden Globes can only hope.

CAA agent Cade Hudson had a birthday bash Wednesday night at Palm restaurant in Beverly Hills. The rain didn't stop a swarm of celebs from dining on steak and lobster, including Gwyneth Paltrow, Sean Penn, Kate Hudson, Joe Jonas, Paris Hilton, Nicky Hilton, Ryan Phillippe, Bella Thorne, Seth MacFarlane, Rachel Zoe, Amanda Seyfried, Suki Waterhouse, Emma Roberts, Francesca Eastwood, Jeff Beacher,Amber Valletta and Dylan Penn.

If Cade gets 10% from all of them, that's a lot of cash ... and cake.