U is the debut studio album by Japanese girl group NiziU. It was released on November 24, 2021, through Epic Records Japan. The album has 12 tracks including its 5 singles released previously, the lead single "Chopstick", and the special single "Need U" with an addition of 7 more tracks from the album's limited-edition version B. The album was released in three physical versions, one normal version and two limited edition versions, A and B.