"Heartbeat" is the second fully produced pop single in the Luna J. collection of songs. This is the pop follow up to their highly regarded release of "Hooked" in 2016. The band has shown their diversity in the past couple releases, this being their second release in a three month span. The last release, "One Take Cuts from Audio in Motion", is a live and in studio cut of original music; new and old. While that album shows Luna's ability to jam and also shows their chemistry as a band in a live setting, this single release shows their ability to come together on a simpler and dance driven song.