"Everything" is a song recorded by Japanese pop boy bandArashi. It was released on July 1, 2009 through their record label J Storm. "Everything" was used as the theme song for the au by KDDI commercials, featuring Arashi as the endorsers. It was released as a CD single in two formats: a regular edition and a limited edition. While both editions comes with the B-side song "Season", the former comes with the instrumental of all the songs, while the latter comes a DVD.[1]
The single sold over 340,000 copies in its first week, topping the Oricon weekly singles chart.[2] Until the release of the group's twenty-eighth single "My Girl", "Everything" held the third highest position for first-week sales for singles of 2009.[3][4] By selling a total of 423,004 copies by the end of 2009, "Everything" is officially the fifth best-selling single of 2009 in Japan.[5]