This doom ballad finds Charlie Puth singing of a perilous relationship. "It's about loving a girl dangerously, taking it to the extremes to make her fall in love with you," he told Billboard magazine. "And even though she makes it seem like she would it was actually never her intention."
"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.