Sugar made their first public appearance on music show in December 2001 with pre-debut single "Sweet Love". The group later released their debut album, Tell Me Why, with the single "Tell Me Why" on March 13, 2002.
Sugar's initial performance on a music program occurred in December 2001 with the release of their pre-debut single "Sweet Love". Their debut album, "Tell Me Why", was released in March 2002 and featured the song "Tell Me Why".