Kristen Hall was one of the founding members of Sugarland, and she co-wrote the group's breakthrough debut single, "Baby Girl." When Did Kristen Hall Leave Sugarland? Why Did Kristen Hall Sue Sugarland? Hall was actually not the first former member to sue Sugarland. According to the Atlanta Journal-Constitution, the group's early self-released album, Premium Quality Tunes, listed five members: Nettles, Bush, Hall, drummer Simone Simonton and guitarist Bret Hartley.