Freddie had this great idea called Stone Cold Crazy, I don't know what the hell was about, it was one of Freddie's frenetic ideas, but it wasn't a frenetic song, so when we got together I said, “Freddie, it would be really funny if we did it more frenetic, like the way you normally are,” so I did [the modified riff]. He liked that, and so the song instantly became [faster] and that was really something that gelled with us very quickly.