Boyan Slat is an inventor, entrepreneur and former aerospace engineering student. He is the founder of The Ocean Cleanup organization: https://www.theoceancleanup.com/

Joe sits down with former UFC Featherweight Champion Max Holloway.

Michelle Wolf is a comedian, writer, producer, and television host. Her new special "Joke Show" starts streaming on Netflix on December 10.

Paul Stamets is a mycologist, author and advocate of bioremediation and medicinal fungi. Check out http://www.fungi.com/

Louis Psihoyos is a photographer and documentary film director known for his still photography and contributions to National Geographic. His film "The Cove" won the Academy Award for Best Documentary Feature in 2010.

Zach Bitter is an endurance athlete, ultramarathon runner and coach. He recently broke 2 world records in running: 100-mile (11:19:18) & the 12-Hour record (104.88 miles).

Tulsi Gabbard is a 2020 Presidential Candidate of the Democratic Party and is currently serving as the U.S. Representative for Hawaii’s 2nd congressional district since 2013. https://www.tulsi2020.com/ Jocko Willink is a decorated retired N...

Matt Taibbi is a journalist and author. He has reported on politics, media, finance, and sports, and has authored several books including his latest "Hate, Inc.: Why Today's Media Makes Us Despise One Another" is available now & look for hi...

Joe sits down with the head coach of Tristar Gym, Firas Zahabi.

Joe is joined by Brendan Schaub to discuss some recent and upcoming fights.

Ari Shaffir is a stand-up comedian and also hosts the podcasts “Ari Shaffir’s Skeptic Tank” & “Punch Drunk Sports.”

Josh Homme is a singer, songwriter, musician, record producer, and actor. He is the founder and primary songwriter of the rock band Queens of the Stone Age.

Edward Norton is an actor, writer, producer, director, and filmmaker. His new film "Motherless Brooklyn" opens in theaters on November 1 .

Bridget Phetasy is a writer and comedian. Check out her show on YouTube called "Dumpster Fire" -- https://www.youtube.com/channel/UC5SQnm72FspDNUXK4cB2_xg & her podcast called "Walk-Ins Welcome" available on Apple Podcasts & Stitcher.

Brian Grazer is a film and television producer and screenwriter. He co-founded Imagine Entertainment in 1986, with Ron Howard. His new book "Face to Face: The Art of Human Connection" is now available: https://www.amazon.com/Eye-Contact-Pow...