Joyce King Thomas is Chairman, Chief Creative Officer of McCannXBC (ExtraBoldCondensed), a unit focused on leading MasterCard's global marketing efforts. She is one of the originators behind MasterCard's priceless campaign, which runs in 100 countries and has been spoofed by everyone from Ralph Nader to Bart Simpson.

During a two-year hiatus from McCann, Joyce became a partner at Longreads, at twitter fueled social reading site that New York Magazine called "highbrow and brilliant."

She has won numerous awards and served as a judge for Cannes, the One Show and the Clios. In 2012, Advertising Age named Joyce one of the 100 most influential women in advertising.