ENTER MUS-BEIBER 1 ZUM
Justin Beiber performs during the halftime of the 100th Grey Cup CFL game played at Roger's Centre on Sunday, November 25, 2012, between the Toronto Argonauts and Calgary Stampeders in Toronto, Ontario, Canada. In a switch from most of the pop star's concerts, the crowd loudly booed Bieber. (Colin McConnell/The Toronto Star/Zuma Press/MCT)