"Boyfriend" is a song from Japanese singer Mai Kuraki and American singer-songwriter Michael Africk, taken from Kuraki's ninth studio album Future Kiss.
Kuraki performed the song at Happy Happy Halloween Live: Mai Kuraki Live Tour 2009 "Best" on October 31, 2009, at Nippon Budokan, along with Michael Africk.
The song was featured in the commercial for Japanese cosmetic brand KOSÃÂ's Esprique Precious collection.