Jay-Z brought out a star-studded crowd for his show in LA last night. Jamie Foxx checked out the show as news broke that he'll be bringing back his favorite '90s alter ego, and Justin Timberlake took a break from practicing his golf game to walk hand-in-hand with Jessica Biel. Nicole Richie had a busy weekend of red carpet events, but she kept going with Samantha Ronson by her side. The famous attendees were treated to a special cameo from Rihanna, who joined Jay for "Run This Town" before she debuted a single from her album — check out the video after the jump. Jay-Z has been touring North America after his big NYC Yankees show, but he and Beyonce are still thinking of making time for a new addition.
To see more of Jay-Z, Nicole, and Justin, and to see Rihanna take the stage, just