"Rollin'" (Korean: 롤린) is a song by South Korean girl group Brave Girls. It was released on March 7, 2017, as the lead single from the EP of the same name. Written by Brave Brothers, Two Champ, and Chakun, the song has been characterized as a dance-pop track that incorporates elements of tropical house. A rearranged version of the song titled "Rollin' (New Version)" was released on August 11, 2018, as a thank-you to the group's fans for their support of the original version.