"Science Bob" Pflugfelder

Science Communicator, Teacher, Author & Television Personality

38 Special

Southern Rock Band Known for "Hold On Loosely" & "Second Chance"

AJ Michalka

Actress; Singer in the Musical Duo Aly & AJ

Aaron Lazar

Award-Winning Actor, Singer & Broadway Star Living with ALS; Motivational Speaker on Hope, Resilience & Purpose

Aaron Lazar | Reel

Aaron Tveit

Actor and Performer; Known for his Role as Danny in "Grease: Live"

Aarón Sánchez

Award-Winning Chef, TV Personality, Author & Founder of the Aarón Sánchez Impact Fund

Abbey Curran

Former Miss Iowa; Founder of “Miss You Can Do It Pageant”; Author

Abigail Johnson

Chairman & CEO at Fidelity Investments

Abigail Rose

Country Singer-Songwriter & Performing Artist

Ace Hood

Rapper & Recording Artist

Adam Kreek

Olympic Gold Medalist, Entrepreneur, High-Performance Expert

Admiral William Fallon

Navy Admiral; Military Strategic Thinker; Cybersecurity Expert; Owner of Consultancy Firm William J. Fallon & Associates, LLC

Admiral William Fallon: NATO intervention into Libya

Adventure Club

Canadian EDM Duo

Ahmed Shihab-Eldin

Emmy-Nominated Journalist; Correspondent & Producer at VICE Media, LLC

Aidy Bryant

Emmy Award Nominated Actress & Comedian Known for "Saturday Night Live" & "Shrill"

Al Lautenslager

Marketing/PR Consultant, Author, and Entrepreneur

Al Roker

Emmy-Award Winning NBC "Today Show" Personality; Media Entrepreneur; Bestselling Author & Actor

Alan Parisse

Wall Street Executive, Hall of Fame Speaker, Leadership Coach

Alan Ritchson

Actor, Model & Singer; Best Known for Amazon's "Reacher" & CW's "Smallville"

Alanis Morissette

Mental Health & Eating Disorder Advocate; Grammy-Winning Alt-Rock Angst Singer-Songwriter; Known for "You Oughta Know" & "Ironic"

Alanis Morissette Talks 'Jagged Little Pill' and Joan Jett