Saturday Night may refer to:

Anthony McPartlin (born 18 November 1975) and Declan Donnelly (born 25 September 1975), known collectively as Ant & Dec, are an English comedy and TV presenting duo from Newcastle upon Tyne, England. The duo first rose to fame as actors on the children's television show Byker Grove, during which and in their subsequent pop career they were respectively known as PJ & Duncan – the names of the characters they played on the show. Since then, Ant & Dec have had a very successful career as TV presenters, presenting shows such as SMTV Live, Friends Like These, Pop Idol, Ant & Dec's Saturday Night Takeaway, I'm a Celebrity...Get Me Out of Here!, PokerFace, Push the Button, Britain's Got Talent, Red or Black? and Text Santa. They have also returned to acting, starring in a 2002 Tribute to The Likely Lads and the 2006 film Alien Autopsy.

Ant is the taller of the two at 5'8" (1.73 m) and Dec is two inches shorter at 5'6" (1.68 m). It is a running joke that many people do not know who is Ant and who is Dec, even though their appearances differ significantly. To assist with identification, they follow the 180 degree rule; all their TV appearances and publicity photos have Ant on the left and Dec on the right, but even this does not help everyone.

Simon Phillip Cowell (born 7 October 1959) is an English A&R executive, television producer, entrepreneur, and television personality. He is known in the United Kingdom and United States for his role as a talent judge on TV shows such as Pop Idol, The X Factor, Britain's Got Talent and American Idol. He is also the owner of the television production and music publishing house Syco.

As a judge, Cowell is known for his blunt and often controversial criticisms, insults and wisecracks about contestants and their abilities. He is also known for combining activities in both the television and music industries, having promoted singles and records for various artists, including television personalities. He was most recently featured on the fifth series of Britain's Got Talent and the first season of The X Factor USA.

In 2010, the British magazine New Statesman listed Cowell at number 41 in a list of "The World's 50 Most Influential Figures 2010".

Cowell was born in Lambeth, London and brought up in Elstree, Hertfordshire. His mother, Julie Brett (née Josie Dalglish), is a former ballet dancer and socialite, and his father, Eric Selig Phillip Cowell (1918–1999), was an estate agent developer and music industry executive. Cowell's father was from a mostly Jewish family, though he did not discuss his background with his children (Cowell's paternal grandmother had immigrated from Poland). Cowell's mother was from a Christian background, and is of part Scottish descent. He has one brother and three half-brothers and a half sister; younger brother Nicholas Cowell, half-brother John Cowell, half-brother Tony Cowell, half-brother Michael Cowell and half sister June Cowell.