Guy Raz interviews the world’s best-known entrepreneurs to learn how they built their iconic brands. In each episode, founders reveal deep, intimate moments of doubt and failure, and share insights on their eventual success. How I Built This is a master-class on innovation, creativity, leadership and how to navigate challenges of all kinds. 
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Years after his father created a hit singing group of anthropomorphic rodents called The Chipmunks Ross Bagdasarian Jr. made it his mission to revive his dad's beloved characters. Over the last 40 years Ross Jr. and his wife Janice have built The Chipmunks into a billion dollar media franchise – run out of their home in Santa Barbara California. PLUS for our postscript 'How You Built That' we check back in with Alexander Van Dewark who created a portable mat that helps people mix cement wit

The Chipmunks: Ross Bagdasarian Jr. & Janice Karman (2017)

How I built this