When I went into the control room to listen to “Stayin’ Alive” for the first time, I was blown away. Barry said, “If you want to rerecord the drums or play the whole track with us, you can.” I said, “Man, I don’t want to touch that groove, but I will overdub some hi-hats.” Barry was thrilled I didn’t want to mess with the track, because he knew what they had. So the next day I went in and did some cymbal crashes and hi-hat overdubs.