Destiny's Chil, sometimes abbreviated as DC, was an American R&B and pop girl group. Originally a quartet, it eventually became a trio consisting of Beyoncé Knowles, Kelly Rowland, and Michelle Williams. The group released four major studio albums with four US number-one singles. According to the Recording Industry Association of America, Destiny's Child has sold 17.5 million of album copies in the United States alone.Billboard magazine ranked the group as one of the greatest musical trios of all time.