Simon Cowell, 62, puts on an animated display as he poses with pal's dog at America's Got Talent

Sofia Vergara and Heidi Klum stun at America's Got Talent Live Show in Pasadena

America's Got Talent: Howie Mandel offers comic Mike E. Winfield gig as opening act at upcoming show

‘AGT’ Recap: Simon Cowell Declares One Jaw-Dropping Act The ‘Best’ Of The Season