Tone (stylized as TONE) is the fifth Japanese studio album (tenth overall) by South Korean pop group Tohoshinki, released on September 28, 2011 by Avex Trax. It is Tohoshinki's first Japanese album since becoming a two-piece band, with members Yunho and Changmin. Tone was released in three physical versions – Version A, a CD+DVD version with music videos; Version B, another CD+DVD version with off-shot movies; and Version C, a CD only version with a bonus track. Composing sessions for the album began in 2009, bull full production began in early 2011.

Musically, Tone is a pop music album largely consisting of uptempos, midtempos, and ballads with R&B, electropop and rock influences. Tone received positive reviews upon its release, with some critics praising it as one of Tohoshinki's most cohesive Japanese album to-date. The album was a major commercial success; it debuted at number one on the Oricon Albums Chart, selling 205,000 copies on its first week of release. Earning a platinum certification by the Recording Industry Association of Japan (RIAJ) two weeks later, Tone eventually became Tohoshinki's best-selling Japanese studio album, with over 330,000 copies sold.

The second single "Superstar" was originally written with English lyrics and titled "Everyday Superstar". When the song was translated into Japanese the lyrics and meaning were completely changed apart from the single word "Superstar". Co-writer Lars Halvor Jensen told HitQuarters that the translator kept it in because "it's a catchy word that everybody understands". The original English language song was recorded by the Irish pop duo Jedward and included on their second album Victory. It was also included as the bonus track on the Japanese release of their debut album Planet Jedward.

On July 30, 2011, while attending the a-Nation 10th Anniversary for Life Charge & Weider in Jelly concert, U-Know revealed that their upcoming Japanese album was slated for release on September 28. There Max also revealed that their 5th Nationwide Japanese tour would be starting in January of next year.

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