Paul McCartney was doing his thing at the desert music fest on Saturday night, when Rihanna graced the stage and surprised the crowd by showing up to perform their hit song FourFiveSeconds!!
There was no Kanye West in attendance to round out the trio, unfortunately, but McCartney and Rih made a pretty good team!!
Ch-ch-check out their performance (below)!!!
Just proving once again how Rih can cross over to nearly any artist and show off enough talent to fit in and look GREAT!!
[Image via Macguyver/WENN.]