David is also national keynote speaker and best-selling co-author of the book Happy Accidents: The Transformative Power of Yes, And at Work and in Life and he has delivered a "Yes, And" keynote address based on the best-selling book at the Democratic Issues Conference for The United States Congress with President Barack Obama and Vice President Joe Biden in attendance.

David Ahearn is a co-founder and the host of the improvisational comedy show Four Day Weekend which is the longest running live show in the Southwest. Four Day Weekend is an ISES Award (International Special Events Society) winner for "Best Entertainment," was named Small Business of the Year by the Fort Worth Chamber of Commerce and has been awarded the key to the city by Fort Worth Mayor Mike Moncrief for being "The city's greatest ambassadors."