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. 

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

Meet Sara Blakely, Shark Tank US

SPANX Founder Sara Blakely on Joining 'Shark Tank': 'I Was Flooded With Emotion' (Exclusive)

SPANX Founder Sara Blakely on Joining 'Shark Tank': 'I Was Flooded With Emotion' (Exclusive)

Sara Blakely

Spanx Founder Sara Blakely Shares Her Best Advice For Entrepreneurs At The Forbes Next 1000 Summit

Spanx Founder Sara Blakely On Celebrating Failures

Sara Blakely - Wikipedia

Spanx names a new CEO

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

My Time at the 10x Growth Conference 3 - Landmark Tax Group

SPANX Founder Sara Blakely on Joining 'Shark Tank': 'I Was Flooded With Emotion' (Exclusive)

Shark Tank Guest Sara Blakely of Spanx Wears Dress Backwards on TV

Meet Sara Blakely, Shark Tank US