Doritos is putting a Christmas twist on its "for fun add a little Mexican" campaign by Abbott Mead Vickers BBDO. The Doritos mariachi band performs East 17’s Christmas hit Stay Another Day with the group’s Tony Mortimer. The spot is supported by experiential, PR and social media work. It was written by Mark Fairbanks and Prabs Wignarajah, and art directed by Thiago de Moraes. It was directed by Olly Williams via HSI.