Hanson Concert
A free concert by pop band Hanson and up-and-coming Canadian rapper Drake was canceled Tuesday after twice as many people as anticipated showed up and many became unruly, police said.

The show started at about 6 PM with an opening act at Pier 17 on Manhattan's South Street Seaport, a popular summer locale for concerts. Hanson, the Tulsa, Okla., brothers behind the 1997 hit 'Mmmbop,' and headliner Drake, whose album 'Thank Me Later' debuted Tuesday, were to appear on stage soon after.

Organizers were anticipating about 10,000 people but nearly 20,000 showed up, police said. Many people climbed roofs and started throwing bottles, as concertgoers smashed together toward the stage, police said.