Mikko Hypponen

Computer Security Expert; Chief Research Officer at WithSecure & Principal Research Advisor at F-Secure

If It's Smart, It's Vulnerable

Bella Thorne

Model, Actress & Author

F. Gary Gray

Director, Film Produce & Actor; Best Known for Directing "Straight Outta Compton" & "The Italian Job"

Rebecca MacKinnon

Founding Director of Ranking Digital Rights

Talib Kweli

Rapper, Emcee, Activist & Entrepreneur

Kimberley Locke

Singer / Television Personality

Cheyenne Jackson

Star of Broadway and TV's "Glee" and "30 Rock"

Bethany Joy Lenz

Actress, Singer-Songwriter & Filmmaker; Known For "One Tree Hill"

9th Wonder

Grammy Award-Winning Producer, Record Executive, DJ & Rapper

9th Wonder On Sampling For Kendrick Lamar | The Formula, S1E2

Aaron Lazar

Keynote Speaker: Award-Winning Actor, Singer, & Broadway Star Living with ALS. Motivational Speaker on Hope, Resilience and Purpose

Aaron Lazar's Keynote at Duke University

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

Cassadee Pope

Singer-Songwriter; Winner of "The Voice" Season 3 & Lead Singer of "Hey Monday"

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Justin Hall-Tipping

The Energy Evangelist, Justin Hall-Tipping works on nano-energy startups -- mastering the electron to create power.

Maria Conchita Alonso

Singer-Songwriter; Latin Actress; LGBT Rights Activist

Q Parker

Grammy Award-Winning Singer-Songwriter and Co-Founder of Multi-Platinum Group 112

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Todd Kuiken

Biomedical Engineering Manager at the Rehabilitation Institute of Chicago

Lucy Hale

Actress & Singer; Best Known for "Pretty Little Liars"

Mark Allen

Six-Time Ironman Triathlon World Champion