Bethlehem Tilahun Alemu

Founder & Managing Director of soleRebels; Promoter of Africa's Entrepreneurial Spirit, Social Capital & Economic Potential

Alli Webb

NY Times Bestselling Author; Canopy President, Co-Founder of Drybar, Squeeze and Becket + Quill

Alli Webb - Sizzle Reel

Bruce Dickinson

Lead Singer of Iron Maiden & Entrepreneur

Reshma Saujani

Lawyer, Politician, Founder of Girls Who Code & Marshall Plan for Moms

Colin Hay

Musician & Actor; Known as the Lead Singer of Men at Work

Tamron Hall

Award-Winning Journalist; Former National News Anchor for NBC News; Host of the "Tamron Hall Show"

Watch Where They Hide

Lynsey Addario

American Photojournalist; Contributor for National Geographic & Time Magazine

Peter Zeihan

Energy & Geopolitical Strategist, Author of "The Absent Superpower" & "The Accidental Superpower"

David Rock

Neuro-Science Based Leadership, Performance and Management Expert

Liz Wiseman

President of The Wiseman Group & Best-Selling Author of "Multipliers"

Ichak Adizes

Corporate Performance Expert & Authority on Managing Change

Sophia Bush

Actress, Humanitarian & Author

Ryan Holiday

Media Strategist, International Best-Selling Author & Host of "The Daily Stoic" Podcast

Right Thing, Right Now: Justice in an Unjust World (The Stoic Virtues Series)

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

Christopher Pissarides

British-Cypriot Economist; Professor of Economics & Political Science at the London School of Economics; Nobel Prize Recipient in Economic Sciences

Ashish Thakkar

Entrepreneur, Refugee, Philanthropist, Founder & Group CEO at Mara Group

Feike Sijbesma

Chief Executive Officer and Chairman of the Managing Board, Royal DSM, Netherlands

Michelle Buteau

Stand-Up Comedian, Host & Actor Known for "Always Be My Maybe" & "Welcome to Buteaupia"

Makaziwe Mandela

Daughter of Nelson Mandela & Director of the House of Mandela Family Foundation

Dr. Jennifer Ashton

Board-Certified Ob-Gyn, Author & TV Medical Correspondent