I Say Mamamoo: The Best (stylized in all caps[1]), sometimes referred to as The Best, is the first compilation album by South Korean girl group Mamamoo. It was released on September 15, 2021 by RBW.[2] The album features 23 tracks, including remixes and re-recorded versions of some of the group's biggest hits. It includes two original tracks, "Mumumumuch" and "Happier Than Ever," with the former being released as the lead and only official single from the album alongside the release of the album itself.
