Tokio is a Japanese rock/pop band formed by Johnny & Associates that debuted in 1994. It is made up of three men who were signed with Sony Music Entertainment from 1994 to 2001, with Universal Music Japan from 2001 to 2008, and are now signed under J Storm, a label owned by Johnny & Associates. In addition to their activities as a band, the members of Tokio also act in dozens of dramas and host variety programmes, both as a group and individually.

Yumiko Shiina , known by her stage name Ringo Sheena , is a Japanese singer, songwriter and musician. She is also the founder and lead vocalist of the band Tokyo Jihen.