President Barack Obama held his "30 Days to Victory Concert" Sunday afternoon for about 6,000 people at the Nokia Theater and supporters lined up starting at 2:00 p.m. The concert will feature performances by Katy Perry and Jon Bon Jovi.

Earlier, the president thanked a dozen donors at DreamWork's Animation co-founder Jeffrey Katzenberg's home in Beverly Hills. After the concert, Obama was expected to greet about 150 people over dinner at the Wolfgang Puck restaurant downtown.