Mark Althavan Andrews, known professionally as Sisqó, is an American R&B singer. Following his tenure as lead performer of the R&B group Dru Hill, he quickly reached success as a solo act with the release of his debut studio album Unleash the Dragon (1999), which peaked at number two on the Billboard 200. It spawned the singles "Incomplete" and "Thong Song", which peaked at numbers one and three on the Billboard Hot 100, respectively.