Simon Cowell undergoes regular colonic irrigation, it is claimed in a new biography of the X Factor star

Simon Cowell’s secret side on BGT - by Amanda Holden

Saturday, May 12, 2012
9:00 AM

A hidden side of Britain’s Got Talent mogul Simon Cowell is coming out thanks to the presence of co-judge David Walliams on the TV talent show panel – according to Amanda Holden.

Viewers of the hit ITV show might have thought the new tell-all biography of Cowell had spilled all the beans on him.

But fellow judge Holden believes new insights into Cowell are eked out on-screen as well - not just on the pages of Tom Bower’s book; Sweet Revenge: The Intimate Life of Simon Cowell.

Holden said: “What I am enjoying more is that everyone is getting to see the Simon we have all known for years but he has never let the audience see: someone who can laugh at himself and someone who has the weirdest and darkest sense of humour.

“He is literally snorting with laughter next to me every night. It’s brilliant to see him happy.”

Britain’s Got Talent reaches its climax with the grand final tonight (Saturday) at 7.30pm on ITV1