The singer sets the night on fire while performing in Toronto. Plus: Beyoncé & Jay-Z, Shia LaBeouf, Paris Hilton and more

SEEING DOUBLE

Kristen Stewart takes the lead as she leaves her hotel with rocker Joan Jett on Thursday in Burbank, Calif. The Twilight star has been hanging with the rocker in preparation for playing her in the biopic The Runaways.