Why Humiliation Drove Kevin O'Leary to Start His Own Business Shark Tank's Kevin O'Leary can clearly remember the first day he knew he was an entrepreneur.

Denis Leary Remembers Denis Leary Movies

Inside Actor Denis Leary and Writer Ann Leary’s Connecticut Estate The home comes with a barn, pool, sport court, dog room and chicken coop; dog ashes not included

'Shark Tank' Host Kevin O'Leary on the Common Reason Why Businesses Fail Kevin O'Leary, co-founder of O'Leary Funds, explains why your top priority should be properly managing your cash flow.

'Shark Tank' Host Kevin O'Leary: 2 Rules for Looking Smart on TV Kevin O'Leary, co-founder of O'Leary Funds, explains why you have to be engaging and interesting if you want television editors to focus on you.

'Shark Tank' Host Kevin O'Leary on Why Entrepreneurship Sets You Free Kevin O'Leary, co-founder of O'Leary Funds, explains why the best thing about being a founder is the ability to create your own path.

What 'Shark Tank' Host Kevin O'Leary Wants to See in a Pitch Kevin O'Leary, co-founder of O'Leary Funds, explains why entrepreneurs should learn from each other's mistakes.

What 'Shark Tank' Host Kevin O'Leary Learned From a $2.5 Million Failure Kevin O'Leary, co-founder of O'Leary Funds, says entrepreneurs have to admit their mistakes so they can learn from them. Here's one of his.

Kevin O'Leary: Why Your Weaknesses Are Way More Important Than Your Strengths Kevin O'Leary, co-founder of O'Leary Funds, describes how he helps companies avoid failure by understanding their weaknesses and filling in the gaps.

Kevin O'Leary shares 3 essential elements of a great 'Shark Tank' pitch O'Leary has seen more pitches than any other Shark. Here's what the successful ones have in common.