Does anyone have stats for TLC/Destiny's Child and Spice Girls? Who is the real best selling girl group of all time? On the X Factor someone called in criticising a judge for saying Little Mix (a girl group on the show) have no lead singer and the caller said 'Spice Girls who are the worlds best selling female group' and you could hear Kelly quietly in the background saying "Oh Really.... Slow down....we sold more. we sold more." and now theres a huge debate on digital spy over who sold more.