On Friday night, an estimated 50,000 people flooded streets in the Super Bowl Village at Indianapolis for a free outdoor concert by the band LMFAO.
Eleven people were injured, 22 people were arrested and one police car was damaged after concert-goers climbed on top of it to get a better view of the stage.
This is Indianapolis' first time to host the Super Bowl. After Friday night's concert, police closed down additional streets to manage the crowds.
LMFAO are famous for their song "Sexy and I Know It."