Rihanna joins Paul McCartney on stage during his Desert Trip set

In 2015 Rihanna stunned the world by releasing a song with ex-Beatle Sir Paul McCartney. Last night she joined the legendary musician during his set at  Desert Trip Music Festivalin Indio, California where they performed FourFiveSeconds together. See photos and a video below. Legend x Legend. pic.twitter.com/XtCL6oaAIZ — Rihanna-Fenty.com (@RihannaReplay) …