"Delightful" is the first physical single released by Ami Suzuki under the label Avex Trax. It is commonly known as Suzuki's "comeback single", as it was five years since the release of her previous major work.^[1]

This single was Suzuki's first significant release her single, "Reality/Dancin' in Hip-Hop" in 2000, which reached No.3 on the Oricon weekly singles chart. "Delightful" was produced by German trance musician Axel Konrad, who gave it a marked eurodance influence. Since her return to a major record company, "Delightful", is her strongest selling single and has become Suzuki's signature song of her new era in the Avex company. Since its release, the song has become a crowd favourite, along with "Be Together", at her live performances in music festivals and public events, one of the most remarkable being the yearly Japan nationwide tour organized by Avex, A-Nation.

The single debuted at number two in the Oricon daily charts. At the end of its first week, it had gotten the third spot, selling 41,936. After twelve weeks in the charts, "Delightful" ended up selling 97,218 copies, and was later placed at number 97 in Oricon's Yearly Top 500 best singles of 2005.^[2]

• 11 March 2005 — Music Station
• 17 March 2005 — Utaban
• 19 March 2005 — Music Fair 21 - "Delightful" and "Love the Island"
• 25 March 2005 — Music Fighter
• 26 March 2005 — CDTV
• 1 April 2005 — PopJam
• 31 December 2005 - CDTV 2005-2006 Special
• 31 December 2005 — 56th Kouhaku Uta Gassen

Oricon Sales Chart (Japan)^[2]