Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

Suzanne Collins

Author of "The Hunger Games" Trilogy

James Patterson

NY Times Best-Selling Author & Reading Champion

J.K. Rowling

Author of the "Harry Potter" Series

Alice Walker

Pulitzer Prize & National Book Award-Winning Author; Best Known for "The Color Purple"

Abigail Johnson

Contemporary Young Adult Author, Known for "If I Fix You"

Anna Todd

#1 International & New York Times Best-Selling Author of the "After" Series, Producer, Entrepreneur & Innovator

Kristin Hannah

Award-Winning Author of "The Four Winds," "The Nightingale" & "Firefly Lane"

Between Sisters: A Novel (Random House Reader's Circle)

Nora Roberts

New York Times Best-Selling Author

Greg McKeown

CEO of THIS Inc. & Best-Selling Author of "Essentialism: The Disciplined Pursuit of Less"

Ree Drummond

Host of "The Pioneer Woman" on the Food Network

Chris Colfer

Golden Globe Winning Actor, Singer, Screenwriter & New York Times Best-Selling Author; Known for His Role in "Glee"

Iyanla Vanzant

New York Times Best-Selling Author, Spiritual Life Coach & Host of "Iyanla Fix My Life"

Nicholas Sparks

International Bestselling Novelist & Screenwriter, Known for "The Notebook"

Bob Costas

Award-Winning Sportscaster, Broadcaster & Best-Selling Author

Eric Dishman

Former Director of the All of Us Research Program

Janet Mock

Author, Feminist, Transgender Rights Activist, TV Host & Founder of #GirlsLikeUs

David Heath

Co-Founder & CEO of Bombas

Allen Iverson

Former NBA Professional Basketball Player

Ryan Reynolds

Producer, Screenwriter, Actor & Entrepreneur; Co-Owner of Welsh Football Club Wrexham A.F.C.

John Daly

PGA Professional Golfer

Taylor Swift

Grammy Award Winning Pop Singer-Songwriter; Called "Most Successful Artist of the 21st Century"

Eli Young Band

Grammy Nominated Country Act

Parmalee

Country Rock Band Known For Singles Like "Carolina" and "Close Your Eyes"

Chris Janson

Country Music Singer-Songwriter Known for "Fix A Drink" & "Drunk Girl"

Ty Burrell

Actor and Activist; Plays Phil Dunphy on ABC's hit show "Modern Family"

Sting

Award-Winning Musician & Rock & Roll Hall of Famer; Former Member of The Police

Mike Shinoda

Musician & Co-Founding Member of Linkin Park & For Minor; Co-Founder of Machine Shop Ventures

Trisha Yearwood

Emmy Award-Winning Cooking Show Host & NYT Bestselling Author; Country Music Artist

Lee Brice

Grammy Award-Winning Country Music Singer & Songwriter; Known for "Love Like Crazy" & "I Drive Your Truck"