The American country music duo Sugarland has released six studio albums for Mercury Nashville and 18 singles, including one as a featured artist. Founded in 2002 as a trio composed of Kristian Bush, Kristen Hall, and Jennifer Nettles, they have recorded as a duo since Hall's departure in December 2005. All of the group's albums have charted within the top three on the Country Albums chart, with three additionally reaching the top position on the all-genre Billboard 200. They have produced eleven top ten singles on the country charts, of which five reached number one.