Sugar Biography (Wikipedia)
Sugar (슈가) was a South Korean girl group active from 2001 to 2005. The group saw moderate success in the Korean music market, and released multiple songs in Japan. Sugar's Japanese singles "Take It Shake It" and "Real Identity" were notably the theme songs for Kaleido Star, a popular anime. After group's contract with SM Entertainment expired in December 2006, it was announced that Sugar had officially disbanded. All members of the group have since branched into acting and musical efforts.