One Sexy Zone

One Sexy Zone (stylized as one Sexy Zone) is the debut studio album by Japanese idol group Sexy Zone. It was released on November 14, 2012, through Pony Canyon. The record was preceded by three singles: "Sexy Zone", "Lady Diamond", and "Sexy Summer ni Yuki ga Furu".

One Sexy Zone was released in four editions: Regular Edition, Limited Edition, Lawson-HMV Limited Edition, and Sexy Zone Shop Limited Edition. It ranked number one on the Oricon Singles Chart, where the quintet set the record for the youngest male group to top the chart with an average age of 15.4 years. The album also charted at number three on the Billboard Japan Top Album Sales chart. It was certified gold by the Recording Industry Association of Japan (RIAJ), denoting shipments of 100,000 units.