Katy Perry, Jon Bon Jovi, more rally behind Obama
The politically-charged "30 Days to Victory Concert" took place at the Nokia Theatre and drew approximately 6,000 guests, including actor George Clooney.
Decked out in star and stripes and flanked by a children's choir, Katy Perry performed her chart-topping single "Firework," as well as a cover of Al Green's "Let's Stay Together."
Obama even made light of his Wednesday (10/3) evening debate against Republican presidential candidate Mitt Romney.
"Everybody here is incredible professionals, they're such great friends and they just perform flawlessly night after night. I can't always say the same," Obama said, according to MTV.