Watch Rihanna & Paul McCartney Perform “FourFiveSeconds” at Desert Trip

The organizers behind Coachella put on the second installment of their concert series Desert Trip this weekend. The stacked lineup featured some of classic rock’s greatest legends, including Bob Dylan, the Rolling Stones, Pink Floyd frontman Roger Waters, The Who, Neil Young and Sir Paul McCartney of The Beatles.

During McCartney’s 2-hour-and-45-minute set on Day 2, the British rock vet brought out Rihanna to perform their 2015 collaboration “FourFiveSeconds.” Paul introduced RiRi by saying, “We have finally found somebody under the age of 50!” Watch their performance below.