Berg told MTV News that this R&B influenced voice-box-drenched track may be his favorite song on the album. He explained: "I'm an R&B dude at heart. And I like rap. I started with [DMX]. My craft has evolved. I try to be a jack-of-all-trades where I can sing R&B and write R&B as well as me doing my rap thing and producing as well. I'm multitasking."
"Kickstart My Heart" is about all the ways Motley Crue gets their blood flowing without drugs. It was inspired by their bass player Nikki Sixx, who claimed he had to be revived with a shot of adrenaline to the heart after an overdose.