The guitar riff was originally something that Ronson wrote when working on Rufus Wainwright's Out Of The Game
album. "It was partly inspired by a cello line he wrote for the song 'Jericho
,'" Ronson told The Guardian
. "I really loved it but it didn't fit his record and I didn't know if I'd ever get to use it."
"But then a year or so later," he continued, " I came up with the verse chords (inspired by some Michael (Chabon) lyrics that we never used) and everything seemed to fit together pretty well."