& (Ayumi Hamasaki EP)

& is an extended play by Japanese recording artist and songwriter Ayumi Hamasaki. It was released on July 9, 2003, by record label Avex Trax. Hamasaki's fourth extended play, & consists of four recordings; "Ourselves", "Greatful Days", "Hanabi: Episode II", and "Theme of A-Nation 03", with three additional instrumentals of the first three tracks. It was released in two different formats; a stand-alone CD, and a digital EP. The artwork for the EP depicts Hamasaki posing in front of a cloudy backdrop, with the title of the work superimposed over her hair. & contains predominantly J-pop and dance music.

Hamasaki contributed by writing the lyrics to all the tracks, while Japanese production and manager Max Matsuura served as the EP's main producer. & received favourable reviews from music critics who commended the EP's production and commercial appeal. & reached number one on the Oricon Singles Chart, and was certified double platinum by the Recording Industry Association of Japan (RIAJ) for shipments of 500,000 units. "Ourselves", "Greatful Days", "Hanabi: Episode II", and "Theme of A-Nation 03" served as promotional singles, while all but the latter track receiving music videos respectively. & was awarded the Japan Record Award at the 46th Japan Record Awards for Best Pop/Rock Album.