British jazz saxophonist Courtney Pine revealed recently he was recording in a studio in London with Rolling Stones vocalist Mick Jagger. The result of that collaboration is now public: a completed song titled “Who You Callin’ Crazy.” This track is a new addition to the Rolling Stones’ repertoire, and features Courtney Pine as a guest musician. The collaboration brings together the iconic rock band and a prominent figure in British jazz. Details surrounding the song’s release and potential inclusion on an album have not yet been disclosed. The song marks an interesting musical convergence between the two artists. It is anticipated to generate significant interest among fans of both the Rolling Stones and Courtney Pine.