This steamy number was written by Sugarland's duo Jennifer Nettles and Kristian Bush together with Kenny Chesney's long-time lead guitarist Clayton Mitchell.
Unusually for a Country track, this song continues musically after the last lyric ends.
Nettles commented on Sugarland's website that she liked the romantic implications of this song's lyrics. The duo also agreed that if the listener isn't making out halfway into this six-minute yearning, then they aren't ever going to be!
"Sloop John B" is a traditional West Indian folk song, and it was a huge hit for The Beach Boys in 1966. They tweaked the lyric, "This is the worst trip since I've been born" to "...I've ever been on" as a wink to acid culture.
"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.