Sharon Osbourne claims Howie Mandel flew private while she flew coach on 'America's Got Talent'.
Gabrielle Union was reportedly labeled "difficult" and clashed with Simon Cowell on "America's Got Talent" before she was fired.
Julianne Hough and Gabrielle Union are alleged to have recieved excessive criticism of their appearance from show bosses.
The music mogul isn't afraid to take on the girl band in the ratings.
The TV judge is reportedly another celeb turned sleuth after details about his birthday party made it into the press.
The X Factor boss turned 60 this month and had been due to celebrate with friends at a lavish bash in West London.
The original winner of 'BGT' failed to make it to the final of 'The Champions' spin-off show and was booted off in the very first round.
Simon Cowell is launching a new spin-off, which will crown the ultimate BGT winner.
The winning act were so thrilled that they'd won, they showed off their new trophy to the general public.
Comedian David Walliams shares behind-the-scenes snap as all-star series 'Britain's Got Talent: The Champions' starts filming.
Simon Cowell pressed his golden buzzer for inspiring youngster Tyler Butler-Figueroa on 'America's Got Talent'.