Music: Rihanna Performs "Rockstar 101" On American Idol

Rihanna shows off her Rockstar persona on American Idol performing her song "Rockstar 101" from her album "Rated R". She will be seen headlining for the first time her new tour around the US called "Last Girl On Earth" along with her supporting act Ke$ha and without Nicki Minaj, who recently pulled out of the tour.