Concert pianist Lang Lang, children's author Philip Ardagh and 'chick-lit' writer Louise Bagshawe feature as well. They join more than 33,000 'noteworthy and influential' people in the 163rd version of Who's Who, out this week. In his entry, Cowell lists his roles as creator and judge on 'The X Factor" and 'Britain's Got Talent" TV shows.
He also lists some of the music acts he has signed over his career, including Leona Lewis, Susan Boyle and 1980s band Curiosity Killed the Cat. Emma Freud - daughter of the late Sir Clement Freud - joins her brother Matthew and her partner, screenwriter Richard Curtis.
In the media world, Dominic Mohan - editor of The Sun - makes the list for the first time, as does ITV newsreader Julie Etchingham. The oldest new entrant is cookery writer, broadcaster and lecturer Marguerite Patten, who recently celebrated her 95th birthday.