Official Artist Tag For Koda Kumi's Song That Ain't Cool Feat. Fergie That Ain't Cool Etc. Check Official Website Www.Avex.Jp/koda Koda Kumi Joined Fergie Originally From Hip-Hop/R&B Band Black Eyed Peas To Make A Song Featured In The 40th Single Called MOON. This Duet Was Annunced Back In 2005 When Koda Kumi And Fergie Appeared In The Japanese Magazine WOOFIN' GIRL.