Apparently, from what I remember (it was three years ago, I’d never heard of JJ, I was a little miffed about travelling to London for my MMus lecture, only to find it cancelled and JJ was doing a guest talk), any they’d spent hours and hours trying to get the sound right for the track. They’d tried loads of session players, but it wasn’t working. They’d decided to actually scrap it, having invested a fortune. JJ was in the studio late after everyone else had gone, he’d continued working on the track, and he’d got it sequenced, Horn came back and liked it, so the two of carried on working on it.