How I Built This with Guy Raz

In 2001, when most of us had no idea what it meant to "go viral," Jonah Peretti shared an email prank among his friends — and saw it spread to millions. That began his fascination with how information spreads, and set him on the path to launch two of the most powerful media organizations of the Internet age: The Huffington Post and BuzzFeed. Recorded live in New York City.

We're hard at work planning our upcoming live shows, so we bring you this favorite from the last year: Samuel Adams. In 1984, Jim Koch felt suffocated by his cushy but boring corporate job. So he left, dusted off an old family beer recipe, started Sam Adams, and helped kickstart the craft beer movement in America. PLUS in our postscript "How You Built That," we check back with Kaitlin Mogental who is making packaged snacks out of the leftover fruit and veggie pulp from LA juice bars.

Cotton muslin baby blankets are commonplace in Australia, where Raegan Moya-Jones grew up. But when she started a new life and family in NYC, she couldn't find them anywhere. She was sure Americans would love muslin blankets as much as Australians. So in 2006, she started the baby blanket company Aden + Anais, which now makes more than $100 million in annual revenue. PLUS in our postscript "How You Built That," how Sam Boyd created Guided Imports, a middleman business to help entrepreneurs find manufacturing and production solutions ... in China.

After being involved in Berkeley's Free Speech Movement, Jann Wenner wanted to start a publication to capture the exploding counterculture scene of the 1960s. The result was Rolling Stone, a gritty music magazine that – for 50 years — has left an indelible mark on rock music and journalism. PLUS in our postscript "How You Built That," how Cleveland resident Joel Crites created the app Micro Fantasy, a game where fans can make mini-predictions about what will happen next during a baseball game.

We're hard at work planning our upcoming live shows, so we bring you this favorite from the last year: Spanx. At 27, Sara Blakely was selling fax machines and desperate to reinvent her life. So she came up with Spanx — hosiery that eliminates panty lines — and set to work building her business. PLUS in our postscript "How You Built That," we check back with Chandra Arthur of the friend-matching app Friendish, and how it was recently featured on the show, Planet of the Apps.

In 1997, Navy SEAL Randy Hetrick was deployed in Southeast Asia, where he was stationed in a remote warehouse for weeks with no way to exercise. So he grabbed an old jujitsu belt, threw it over a door, and started doing pull-ups. Today, TRX exercise straps dangle from the ceiling in gyms across the country and are standard workout gear for professional athletes. PLUS in our postscript "How You Built That," how Whitney Sokol created SproutFit — adjustable onesies and leggings that grow with your baby.

In 2007, architect Miguel McKelvey convinced his friend Adam Neumann to share an office space in Brooklyn. That was the beginning of WeWork: a shared workspace for startups and freelancers looking for an inspiring environment to do their work. Today, WeWork has created a "community of creators" valued at nearly $16 billion.

Lisa Price worked in television but had a passion for beauty products. At her mother's suggestion, she began selling her homemade moisturizer at a church flea market. Twenty years later, Carol's Daughter is one of the leading beauty brands catering to African-American women. PLUS in our postscript "How You Built That," how professional trumpet player Dan Gosling created a special lip balm for musicians called ChopSaver.

Jerry Murrell's mother used to tell him, you can always make money if you know how to make a good burger. In 1986 — after failing at a number of business ideas — Murrell opened a tiny burger joint in Northern Virginia with his four sons. Five Guys now has more than 1,400 locations worldwide and is one of the fastest growing restaurant chains in America. PLUS in our postscript "How You Built That," how Aiden Emilio and her husband created RexSpecs — UV-protecting goggles for dogs.

Blake Mycoskie started and sold four businesses before age 30. But only in Argentina did he discover the idea he'd want to pursue long term. After seeing a shoe drive for children, he came up with TOMS — part shoe business, part philanthropy. PLUS in our postscript "How You Built That," how a long-haired Southern Californian, Chris Healy, co-founded The Longhairs and created special hair ties for guys.

In 1981, engineer Rod Canion left Texas Instruments and co-founded Compaq, which created the first IBM-compatible personal computer. This opened the door to an entire industry of PCs that could run the same software. PLUS in our postscript "How You Built That," how frustrated renter Melanie Colón created an easier way to communicate with noisy neighbors, called Apt App.

In 1978, college drop-out John Mackey scraped together $45,000 to open his first health food store, "Safer Way." A few years later he co-founded Whole Foods Market — and launched an organic food revolution that helped change the way Americans shop. PLUS in our postscript "How You Built That," how Kyle Ewing created waterproof paper through his company TerraSlate.

In 1972, Maureen and Tony Wheeler bought a beat-up car and drove from London "as far east as we could go." They wound up in Australia, by way of Afghanistan, India and Thailand. Their notes on how to travel on a shoestring became a book, which grew into Lonely Planet — the largest travel guide publisher in the world. PLUS in our postscript "How You Built That," how 15-year-old Michael Mendicino, with help from his mom, took a teenage trend and turned it into a board game called Bottle Flip.

As a kid, Troy Carter dreamed of being a rapper, but soon discovered he was a better manager than a musician. He took Lady Gaga from obscurity to stardom – helping shape both her music and her brand. Then he turned his gift for spotting talent to spotting investment opportunities with his company Atom Factory.

Barbara Corcoran grew up in a working-class Irish Catholic family in Jersey – with nine brothers and sisters. But she used her charisma to conquer the streets of Manhattan and build the real estate company, The Corcoran Group. She then reinvented herself as a shark – on Shark Tank.