"Eternal" is the first solo single by Japanese singer-songwriter and former KAT-TUN member Jin Akanishi, released on March 2, 2011 by Warner Music Japan.

In February 2010 Akanishi held over 30 concerts titled "You & Jin" in Japan, while in June had 3 sold-out shows at Club Nokia in Los Angeles.

[2][3][4] In July was announced that he would permanently leave the group KAT-TUN, becoming the first solo artist of Johnny & Associates to perform in the United States.

[5] In November was held tour "Yellow Gold Tour 3010", named after the tour's title song "Yellow Gold", and the venues included were Rosemont Theatre in Rosemont, The Warfield in San Francisco, House of Blues in Houston, Club Nokia in Los Angeles, and MTV Iggy Studio and Best Buy Theater in New York City.

[16] By the end of the year it was reported by Oricon that it was 23rd best-selling single,[17] and was certified platinum by RIAJ denoting over 250,000 shipments.