Rihanna made a surprise appearance to join the two rap icons on stage during a performance of All Of The Lights (above).
#RihannaNAVi made historih tonight as the first person to Watch The Throne AND join it!!! No one is allowed on that stage! Thank u guys
— Rihanna (@rihanna) May 20, 2012
We're sure your fans want to thank you too, gurl! Your participation definitely helped make the night an unforgettable experience for anyone lucky enough to attend.