Spanx founder Sara Blakely speaks onstage during the Massachusetts News Photo - Getty Images

Spanx founder Sara Blakely speaks onstage during the Massachusetts Conference for Women at Boston Convention & Exhibition Center on December 8, 2016 in Boston, Massachusetts. Get premium, high resolution news photos at Getty Images

1,101 Sara Blakeley Photos & High Res Pictures - Getty Images

1,101 Sara Blakely Photos & High Res Pictures - Getty Images

Spanx founder Sara Blakely speaks onstage during the Massachusetts News Photo - Getty Images

Spanx founder Sara Blakely speaks onstage during the Massachusetts News Photo - Getty Images

1,101 Sara Blakely Photos & High Res Pictures - Getty Images

Sara Blakely: a woman with a great grasp of figures, Lingerie

Photos: Spanx founder Sara Blakely through the years

1,101 Sara Blakeley Photos & High Res Pictures - Getty Images

Spanx founder Sara Blakely gives staff $10,000, plane tickets - Good Morning America