On August 22, RBW confirmed that MAMAMOO members Solar and Moon Byul are planning to release an album as the group's first unit.[1] On August 23, they dropped the first teaser for the unit, which officially debuted on August 30 with the digital single "Better".[2]
2023: "Act 1, Scene 1", Two Rabbits[]
On February 21, Xportsnews reported that the subunit would be making a comeback in March.[3] RBW later confirmed the news with TV Report.[4] On March 9, it was announced that MAMAMOO+ would be releasing their first single album, "Act 1, Scene 1", on March 29.[5] The single "Chico Malo" was pre-released on March 21.
On July 7, RBW confirmed that MAMAMOO+ will be coming back in August.[6] On July 12, it was announced that MAMAMOO+ will be releasing their first mini album, Two Rabbits, on August 3.[7] The single "Save Me" would be pre-released on July 18.