A$AP Ferg

Hip-Hop Recording Artist From Harlem; Member of the Hip-Hop Collective A$AP Mob

Abigail Johnson

Chairman & CEO at Fidelity Investments

A Conversation with Abby Johnson, Chairman & CEO of Fidelity Investments

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Ali Velshi

CNN Chief Business Correspondent

Alison Brie

Stars on NBC's "Community" and AMC's "Mad Men"

Alonzo Mourning

Naismith Memorial Basketball Hall of Fame Inductee; Co-Founder of Mourning Family Foundation

Andrew McMahon

Singer-Songwriter; Andrew McMahon In The Wilderness; Former Front Man of Something Corporate and Jack's Mannequin; Survivor of Acute Lymphoblastic Leukemia

Aubrey O'Day

Former member of Danity Kane, Pop Artist

Barry Nalebuff

Milton Steinbach Professor of Management at Yale School of Managment, Co-Founder of Honest Tea & Chairman of KomBrewCha

Bjorn Lomborg

Political Scientist & Author of "The Skeptical Environmentalist"

Bob Newhart

Stand-Up Comedian & Actor, Known for "The Bob Newhart Show" and "Newhart"

Bob Vila

Home Improvement Expert; Former Host of "This Old House" and "Bob Vila's Home Again," Among Other Shows

Cal Ripken, Jr.

President & CEO Ripken Baseball, Inc.; Baseball "Ironman" and Legendary Shortstop from the Baltimore Orioles

Carolyn Everson

VP, Global Marketing Solutions, Facebook

Casey Neistat

Vlogger & Co-Founder of Beme Multimedia Company

Christie Brinkley

Model, Actress, Children's Activist

City and Colour

Recording Alias for Canadian Singer-Songwriter Dallas Green

Clay Aiken

Singer-Songwriter, Runner Up on FOX's "American Idol" & North Carolina Politician

Cobra Starship

Dance-Pop Band; Known for "Good Girls Go Bad" Ft. Leighton Meester

Craig Newmark

Founder of Craigslist; Internet Entrepreneur; Leader in Social Networks