SPANX Founder Sara Blakely on Joining 'Shark Tank': 'I Was Flooded

ET got a behind-the-scenes sneak peek at Blakely's guest-starring role.   

How Spanx founder Sara Blakely makes and spends her $1.1 billion fortune

Spanx Founder Sara Blakely Heads to the Tank - Parade

Sara Blakely's First EVER Shark Tank Deal, Shark Tank Firsts

Watch: Spanx Employees React to Gift of $10,000, Plane Tickets

Sara Blakely's First EVER Shark Tank Deal, Shark Tank Firsts

Madison kombucha kit maker to give 'Shark Tank' pitch Sunday

Sara Blakely

Billionaire Sarah Blakely's embarrassing moment led to Spanx success

Clearwater's Sara Blakely among investors in $150M fund for startups

Spanx CEO Sara Blakely offers advice to redefine failure

Sara Blakely says this daily morning habit sets her up for success

Spanx Founder Sara Blakely's Dad Taught Her How to Redefine Failure

Spanx founder Sara Blakely learned an important lesson about failure from her dad — now she's passing it on to her 4 kids