Rihanna was joined on stage by Jay-Z as she launched her new album in London.
 
The R&B star was joined by her mentor on "Run This Town" and "Umbrella" as she performed a short set at London's Brixton Academy last night (Nov. 16), a show streamed live online by Nokia.
 
Rihanna also debuted songs from her new album, "Rated R" (SRP/Def Jam), due worldwide Nov. 23. Starting with "Mad House," she also performed "Wait Your Turn" and lead single "Russian Roulette," currently No. 9 on Billboard's Hot 100, before being joined by Young Jeezy on another album track, "Hard."
 
Before the grand finale with Jay-Z, Rihanna also performed some of her biggest hits, including "Don't Stop the Music," "Take a Bow," "Disturbia" and "Live Your Life."
 
Playing with a full rock band and wearing a studded leotard, Rihanna put in a dramatic performance, at one stage singing from a revolving white chair.
 
Nokia streamed the event around the world at www.nokia.com/rihanna and will also offer an exclusive version of "Rated R" via its Nokia Music Store.