Nadiya Hussain

British TV Chef & Author; Winner of the Sixth Season of The Great British Bake Off

Tara Brach

Author & Mindfulness Teacher; Host of the "Tara Brach" Podcast

Trusting the Gold: Uncovering Your Natural Goodness

Diane Guerrero

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

Donald Driver

NFL Super Bowl Champion, Children's Author, "Dancing With the Stars" Winner & Family Man

Gabrielle Union

Actress, Voice Artist, Activist, Author & Investor

Kirk Cameron

Actor Best Known for "Growing Pains," "Left Behind" & "Fireproof;" Advocate for Christianity & Gospel-Centered Marriage

LL Cool J

Hip-Hop Artist, Host of "Lip Sync Battle" & Actor Known For "NCIS"

Steffi Graf

Retired World No. 1 Tennis Player & International Tennis Hall of Famer; Winner of 22 Grand Slam Titles & Olympic Gold Medalist

Dave Ramsey

Radio Personality, Multiple NYT Best-Selling Author, Entrepreneur & Host of "The Dave Ramsey Show" Podcast

Jay Leno

Emmy Award-Winning TV Late Night Show Host, Stand-Up Comedian & Best-Selling Author

Tonya Lewis Lee

Author, Producer, Filmmaker & Entrepreneur; Women's Health Activist

Tonya Lewis Lee on the Black maternal mortality crisis

Bart Millard

Singer & Songwriter, Lead Singer of MercyMe

T.D. Jakes

Ministerial Business Visionary, Spiritual Shepherd & Author

Danielle & Kevin Jonas

Stars of "Married to Jonas" & Children's Book Authors

There's A Beach In My Bedroom

Sophia Grace Brownlee

Youtube Sensation and Frequent Guest on The Ellen Show

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"

DeVon Franklin and Meagan Good

Hollywood Power Couple & Authors of the New York Times best-seller "The Wait"

Max Lucado

Award-Winning Author & Senior Pastor of the Oak Hills Church

Madonna

Pop Legend, Music Sensation and Fashion Icon; Famous Hits Include "Papa Don't Preach," "Like a Prayer," and "Vogue"