Sir Paul McCartney paid tribute to the Rolling Stones in his warm-up set - as his rock rivals are set to play 125 miles away in Hyde Park.
The two legendary artists are staging massive shows on the same night tonight.
And Sir Paul kicked off his gig in Frome on Friday night at the Cheese and Grain by acknowledging the historic occasion by playing I Wanna Be Your Man, which him and John Lennon wrote for the Stones in 1963.