Music Muscle is the fourteenth studio album by Japanese singer-songwriter Maki Ohguro. It was released on 5 December 2018 under the Being Inc. label. It's her first studio album for the first time in 8 years. From this album, Ohguro works with music production team from the Being, the label which she debuted. This album was released in two formats: regular 2-disc edition and limited first press edition with DVD. The DVD disc includes music videoclips and making footage for the songs Music Musle, Lie Lie Lie, My Will, Latitude and Zoom Up.