New York ( CNN ) -- A free concert in Manhattan by Canadian rapper Drake and pop trio Hanson was canceled Tuesday evening because of an unruly crowd , police said . `` People were throwing bottles , there was people on roofs throwing chairs . It was chaos , '' one concertgoer told CNN-affiliate NY1 . One third of Hanson , Zac , talked about the incident on his offical Twitter account : `` Had to cancel the free NYC show today because of a crazy audience that was breaking things at the mixing board . '' The mayhem erupted before Drake , whose widely anticipated new album hit stores Tuesday , took the stage . `` NYPD will not let me go on stage tonight , '' he tweeted shortly before he was supposed to perform . A spokeswoman for the NYPD disputed the idea that police called off the concert , telling CNN that the event 's promoters made that call . Paper Magazine , a sponsor of the event along with Ray-Ban , explained via Twitter that `` the crowd was much larger than we anticipated . '' A promotional poster said organizers were expecting a crowd of 10,000-plus . Two concertgoers were arrested and some others sustained `` minor injuries , '' the NYPD spokeswoman said .
Drake and Hanson concert canceled in New York . concertgoer says crowd turned into chaos . Drake and Hanson talked about incident on Twitter .