The Queen of Hip-Hop Soul is in London right now working on tracks for her fall album, Mary J Blige: The London Sessions. She found the coolest music people over there: the brothers of Disclosure, Sam Smith, and Jimmy Napes. According to The Guardian, Mary loved “Stay With Me,” did a cover alongside Smith, and then sent Disclosure her version of “F for You” (which was then released). Then they became friends and made this excellent song.