How I Built This with Guy Raz

Priority Bicycles founder and CEO Dave Weiner joins Guy on the Advice Line to answer questions from three early-stage founders. Plus, Dave shares his strategy for keeping sales steady and positioning Priority Bicycles for continued growth in uncertain or declining markets. 

First, we meet Dave from Rhode Island who’s trying to figure out how to bring his oft-misunderstood coffee milk product to the national market....

In the summer of 2000, Razor scooters were everywhere—on sidewalks, in schools, even in Silicon Valley offices. At the center of it all was Carlton Calvin, an ex-lawyer turned toy mogul who had already ridden—and crashed—multiple crazes, from Pogs to yo-yos.

Carlton knew how to spot what kids wanted before the world caught on. But when Razor went from selling a million scooters a month to zero almost overnight, his business...

This week, Guy is joined by Lady Gaga’s former manager Troy Carter, Joe Gebbia of Airbnb, and Sadie Lincoln of barre3 in a special mashup episode of the Advice Line about playing to your business’s strengths.

First, Honor from Australia wants to partner with a celebrity in a way that actually boosts her pill organizer brand. Then, Arvy from Johannesburg digs into what makes his sporting and outdoor optics company special. A...

What does it take to turn a Brooklyn beer salesman into the king of iced tea?

In the early 1990s, the iced tea market was dominated by Lipton, Nestea, and Snapple. But Don Vultaggio saw an opening. A single moment—watching Snapple cases fly off a truck in winter—sparked an idea that would change his life: why not sell tea in a tallboy can? 

AriZona exploded—outselling Snapple and becoming a multi-billion-dollar brand.&n...

Entrepreneur, author, and podcaster Tim Ferriss joins Guy on the Advice Line to answer questions from three early-stage founders. Plus, Tim shares the inspiration behind his latest venture, Coyote— a 10-minute card game that encourages time spent with friends and family.

First, Lauryn from San Francisco asks about the best way to scale her biodegradable ear plugs in two very different directions. Then Emily from Kansas...

In 2001, three web designers built a quirky email tool called Mailchimp.

It wasn’t their main business.

It wasn’t even meant to make real money.

For years, Ben Chestnut and his partners survived on web-design gigs, while Mailchimp earned just enough to cover lunch.

Then…one surprising spreadsheet changed everything.

In this episode, Ben reveals:

• The decision that tripled their revenue overnight
• How a mispronunciation on the w...

Ring founder Jamie Siminoff joins Guy on the Advice Line, where they answer questions from three founders about balancing short- and long-term goals.  

Today, we meet Vico, an industrial designer in southern California who's launching a crowdfunding campaign for his patented ergonomic desk. Then Iyin, a Baltimore-based product specialist seeking to balance accessibility and profitability for her ethically-sourced ...

Amy Errett had a successful career in finance and venture capital before taking a leap into an entirely new business: hair color. When her wife complained about the indignities of coloring her hair at home, Amy realized the sector was ripe for a makeover. At age 56, she dove into the minutiae of dyes and developers, launching her own formula in 2013, and naming it after her daughter. Madison Reed’s early successes were mar...

In 2021, Daniel Humm shook up the dining world by making his 3-Michelin-star restaurant, Eleven Madison Park, 100% plant-based.

No meat. No butter. No cream.

It was a first in fine dining, igniting global headlines, industry backlash, and endless debate.

Now, in an exclusive podcast conversation with Guy Raz, Daniel shares his next bold decision—he's reintroducing animal products. Daniel shares what he learned from his y...

Crumbl may be a cookie business – but Jason McGowan turned it into a fast-growing restaurant chain by building it like a tech startup. He and co-founder Sawyer Hemsley meticulously A/B tested the recipe, launched a delivery app early on, and went viral with weekly drops of wild new flavors like bubblegum and Almost Everything Bagel. In just eight years, Crumbl has opened over 1,000 stores, and has dominated the cookie conv...

Chesapeake Bay Candle and Blueme founder Mei Xu joins Guy on the Advice Line to answer questions from three early-stage founders. Plus, Mei shares the importance of businesses meeting people everywhere they shop.

First, Sasha, who started a gourmet pot pie company in Brooklyn, New York, asks how to find the right co-founder who can do the things she can’t. Then, Tara from Dubai, Saudi Arabia wants to know whether to market ...

Long before he became famous as the sharp-tongued TV personality who launched the careers of pop stars, Simon Cowell was a rebellious teenager who dropped out of school and started his career in the mailroom at EMI. After a failed business left him nearly bankrupt, he found success by zigging where others zagged—initially by selling hit records based on TV shows like Power Rangers and WrestleMania. Eventually Simon got beh...

Isaac Larian is the founder of MGA Entertainment, the company behind Bratz and LOL Surprise dolls. This week, he joins Guy on Advice Line to answer questions from three early-stage entrepreneurs. Plus, Isaac talks about the effects of tariffs on the toy industry. 

First, we meet Meghan from Nashville, who finds that the customer for her educational toys may not be who she thought. Then, Libie from New York wants to gro...

Long before founding Torchy’s Tacos, Mike Rypka was a troubled teenager trying to outrun his own self-destruction. Growing up around addiction and falling into heavy drug use himself, Mike’s future looked bleak—until he got clean and found refuge in kitchens. Cooking gave him structure, purpose, and eventually, a career.

After years working in restaurants and corporate kitchens, Mike decided to take a risk on something ...

Former manager of Lady Gaga and Atom Factory founder Troy Carter joins Guy on the Advice Line, where they answer questions from three early-stage entrepreneurs. Plus, Troy’s advice for reaching new audiences when digital ads struggle to perform.

First we meet Madelyn in Arizona, who’s trying to grow her postpartum frozen meal delivery service while preserving its focus on her local community. Then Tyler in Oregon, who wants...

As a Harvard squash player, Will Ahmed discovered his game improved when he focused on things like sleep, diet, and time spent recovering from training. He was convinced that granular health and heart data would become invaluable to other athletes if it could be bundled into a wearable wrist strap. In 2012, Will founded WHOOP, and after three years the company launched its first model, with Lebron James and Michael Ph...

Hinge founder and CEO Justin McLeod joins Guy on the Advice Line to answer questions from three early-stage founders. Plus, Justin describes Hinge’s new initiatives around intentional dating.

First, Jessica in Toronto, Canada asks about opening new markets for her self-guided mystery road trip packages. Then Nick from Auckland, New Zealand wonders about strategies to drive word-of-mouth referrals for his designer security s...

As a newly arrived immigrant from Turkey, Hamdi Ulukaya learned to be resourceful, determined, and even stubborn when he needed to be. All those traits would serve him well as he began to navigate the hairpin turns of building a yogurt business from the ground up. In 2005, Hamdi was running a small feta cheese business in upstate New York when he happened upon a piece of junk mail that would change his life: an ad for an a...

Iconic fashion designer Norma Kamali joins Guy on the Advice Line, where they answer questions from three early stage founders. Plus, Norma shares her take on balancing a strong creative vision with the financial realities of building a worldwide brand. 

First we meet Ahmed in the U.K,, who’s refining a narrative for his eyeglass store concept in hopes of attracting investors. Then Bob in Chicago, who wants to chan...