Heartbeat (Girlfriend song)

Heartbeat is a song recorded by the South Korean girl group GFriend (now VIVIZ) as a B-side track on their seventh mini-album, "Fever Season," released on July 1, 2019, by Source Music. The song is characterized by its synth-pop sound and focuses on themes of youthful infatuation and longing. It is not a title track and, therefore, did not receive dedicated music video production or performance promotions beyond its inclusion in the album's tracklist and occasional B-side stage performances. It's often appreciated by fans for its bright melody and lyrical expression of romantic feelings.