Beyoncé thanks Paul McCartney for the 1968 Beatles song "Blackbird," which she covers as "Blackbiird" on her album 'Cowboy Carter.'

The singer also took the moment to show some love for Sir Paul McCartney, who wrote the Beatles' iconic song, "Blackbird," which Beyoncé covered on her Grammy-winning album."Thank you, Sir Paul McCartney,

Beatles icon Paul McCartney celebrates his 83rd birthday on June 18. In advance, he received a very special tribute from a prominent colleague: Beyoncé honored the musician with a special shirt on stage in London and with a heartfelt post.