The song originally featured vocals from Linkin Park's late singer Chester Bennington before Slash got the Motörhead frontman to sing on the final version. Slash explained to Variety
that Lemmy only came on board after Bennington's involvement was blocked by his band. "Musically, it's the same as the Lemmy song, but the lyrics are really poignant," he said.
Slash added that the lyrics "really [spoke] to [Bennington's] state of mind." The song starts off: I went to see the doctor
He said you're pretty sick
You got some real bad habits
You'd better stop right quick