Simon Cowell, 63, claims he's 'ageing quite well' in resurfaced clip from 2007

Simon Cowell is in tug of war with ITV over new Britain's Got Talent judge

Katie Waissel retrains in law to sue Simon Cowell after 'The X Factor ruined my life'

America's Got Talent: All-Stars: Simon Cowell hits Golden Buzzer for stand-up comic Mike E. Winfield