Jin Akanishi (Chi Xi  Ren , Akanishi Jin, born July 4, 1984) is a Japanese musician, singer, songwriter and actor. He has been active since 1998, first as one of the two lead vocalists of the popular J-pop boy-band KAT-TUN. Since the group's official debut in 2006, they have achieved 14 consecutive number ones (including studio albums) on the Oricon charts. In 2009, Akanishi started his solo career, and since then has released two studio albums (Japonicana, #JustJin), and two mini albums (Test Drive, Mi Amor).

After he was made a Johnny's Jr. member in 2000, Akanishi was part of a number of groups like Musical Academy Dancing, J2000 and B.A.D., before being drafted into a six-member unit in 2001 with other juniors Kazuya Kamenashi, Junnosuke Taguchi, Koki Tanaka, Tatsuya Ueda and Yuichi Nakamaru. Though the group was originally meant to only be backup dancers for Koichi Domoto of KinKi Kids, the sextet's unexpected popularity led their agency to allow them to expand into a separate group called KAT-TUN, an acronym formed by the first letter of the members' surnames. Despite the group's popularity (they even released DVDs of their live concerts in 2003 and 2005--a first for Johnny's groups that hadn't debuted), they were not allowed to make their bow until five years later in 2006, to immense success.  Much to the Japanese public's surprise, Akanishi announced in a press conference on October 13, 2006, that he was leaving the country to study English abroad for an indefinite amount of time. Despite his absence, KAT-TUN were obliged to continue its activities Akanishi finally returned from Los Angeles in the United States after six months on April 19, 2007. He quickly resumed work by joining his bandmates on their nationwide tour on April 21.  Akanishi was also a songwriter for the group, having written songs for KAT-TUN and for himself, including "Hesitate", "Love or Like" (from Cartoon KAT-TUN II You), "Lovejuice" (B-side of the limited edition 2 of "Don't U Ever Stop"), "Care" (from Break the Records: By You & For You), and "Wonder". The song "Wonder" is a collaboration with R&B artist, Crystal Kay in 2009, and Akanishi also featured in her song "Helpless Night". He can play the guitar and has composed both music and lyrics for "Murasaki (murasaki)", "ha-ha" and "Pinky". He also collaborated with bandmate Ueda to create the song, "Butterfly" (from Best of KAT-TUN).  At the event of Tokyo Girls Collection on September 5, 2009, Jin appeared as a special guest to promote his new movie, Bandage, and he performed the movie's theme song which marked this as the solo debut under the temporary band unit, LANDS, with Takeshi Kobayashi, the producer of Mr. Children. Kobayashi wrote the lyrics and music of their debut single "Bandage". It was released on November 25, and debuted at number one on the Oricon charts. In 2010, on January 13, was released the studio album Olympos, which also topped the Oricon charts. On January 19, the band held their only live concert, titled LANDS Last Live.  Akanishi had a series of solo concerts, titled "You & Jin", comprising a total of 32 shows from February 7 to February 28, 2010. The song "A Page", he co-wrote, composed and arranged, featured at his concerts, was released as part of KAT-TUN's 11th single, "Love Yourself (Kimi ga Kirai na Kimi ga Suki)", on the 2nd limited edition. On June 19 and 20, Akanishi's solo tour "You & Jin" had a 3 sold-out show tour in Los Angeles, California.  In the last show of his "You & Jin" concert Akanishi announced a tour in the United States. In July, Akanishi announced that he would permanently leave the band KAT-TUN, becoming a solo artist of Johnny & Associates. On September 16, were released dates for Akanishi's November tour "Yellow Gold Tour 3010", named after the tour's title song "Yellow Gold", and the cities included were Chicago, New York City, Houston, Los Angeles and San Francisco. The tour featured songs entirely in English, mostly written and produced by the Akanishi himself.  On December 9, 2010, it was announced that Jin will be joining the Warner Music Group and Warner Music Japan on a global basis and became responsible for his recording career in both English and Japanese language. After the "Yellow Gold Tour 3010" ended with success, Jin returned to Japan to held "Yellow Gold Tour 3011" with total 12 concerts in Osaka-jo Hall, World Memorial Hall, Nippon Budokan and Saitama Super Arena.  Jin's first solo single titled "Eternal" was released on March 2, 2011, in Japan, and topped both Oricon and Japan Hot 100 charts. His debut single in the United States was the digitally released extended play Test Drive released on November 8, a collaboration with singer-songwriter Jason Derulo and producer J. R. Rotem. It reached the number one spot on the iTunes Dance Charts, and tenth spont on the overall Albums chart. The Japanese release was on December 7, and it peaked at number fourteen on the Japan Hot 100, and topped both Oricon and Billboard album charts in Japan. On December 28, was released his second physical single in Japan, Seasons, which also topped the charts.  In 2012, on January 26 his second US digital single "Sun Burns Down" was released, and reached the number one spot on the iTunes Dance Charts again. On March 6, was released his debut studio album Japonicana, on which collaborated with The Stereotypes and Static Revenger. It reached number two on the Oricon charts. From March 9 to 17 was held a promotional concert tour, which started at Club Nokia in Los Angeles. In Japan from April to May was scheduled to hold 7 concerts in 5 cities including Tokyo and Osaka for a total of 70,000 people, but his further plans were abruptly cancelled due to a penalty by his own agency Johnny's Entertainment because didn't contacted his agency beforehand and reported his marriage at time.  In 2013, on August 7 was released his third single in Japan, "Hey What's Up?", which was chosen as the first official theme song for the Tokyo Girls Collection fashion show, which was held on the 31st of that same month at the Saitama Super Arena. It reached number two on the Oricon charts. On October 2 was released the fourth single "Ai Naru Ho e" (To Where Love Rings), which reached number three on the charts.  On November 6 Akanishi released his second studio album #JustJin. The self-produced album included all the singles released in Japan since his solo debut in 2011, and a second bonus disc featured songs written in English during his Japonicana era. It reached number three on the charts.

Were there any hit singles?
"Hey What's Up?", which was chosen as the first official theme song