Risto Mejide holds a degree and MBA from the ESADE business school (1997) where he also worked as a lecturer.
Mejide joined the jury of the show on its fifth series and became known for his comments, which often offended the contestants. He has been compared to Simon Cowell. In 2008 Mejide published his first book, El Pensamiento Negativo ("The Negative Thinking"). In 2009 he began to work as a songwriter and music producer, associating himself with Labuat.