The DJ signed with 50 Cent's record label and is coproducing an album with the rap mogul. (He's also partnered with 50 to put out a line of headphones and will DJ Britney Spears' wedding).
The 37-year-old rapper, dancer and DJ, whose father Berry Gordy founded the Motown record label, played tennis as a junior and has attended some of the Grand Slam tournaments.
Tom Butler, the evening-drive DJ who shares an office with James, pops in record after record: the Dirty Projectors, Thao with the Get Down Stay Down, Grizzly Bear.
The band soon found a fan in legendary BBC Radio 1 DJ John Peel and were then signed to the major record label Sire Records by Seymour Stein, the man responsible for signing Madonna a few years later.
But the book is not short of interesting tales, like the DJ who runs Morrissey nights in Manchester for devotees and Norman Cook almost losing his record box after a night in Nottingham.