Canadian singer Justin Bieber performs during the halftime show during the 100th CFL Grey Cup championship football game in Toronto, November 25, 2012.(Photo/Agencies)
Canadian singer Justin Bieber (2nd R) performs during the halftime show during the 100th CFL Grey Cup championship football game in Toronto, November 25, 2012.(Photo/Agencies)
Carly Rae Jepsen performs during the half-time show at the 100th CFL Grey Cup championship football game between the Calgary Stampeders and the Toronto Argonauts in Toronto, November 25, 2012.(Photo/Agencies)
Canadian singer Justin Bieber (2nd R) performs during the halftime show during the 100th CFL Grey Cup championship football game in Toronto, November 25, 2012.(Photo/Agencies)
Canadian singer Justin Bieber (2nd R) performs during the halftime show during the 100th CFL Grey Cup championship football game in Toronto, November 25, 2012.(Photo/Agencies)
Carly Rae Jepsen performs during the half-time show at the 100th CFL Grey Cup championship football game between the Calgary Stampeders and the Toronto Argonauts in Toronto, November 25, 2012.(Photo/Agencies)Canadian singer Justin Bieber performs during the halftime show during the 100th CFL Grey Cup championship football game in Toronto, November 25, 2012.
Carly Rae Jepsen performs during the half-time show at the 100th CFL Grey Cup championship football game between the Calgary Stampeders and the Toronto Argonauts in Toronto, November 25, 2012.