Tensions flared between the judges during the America's Got Talent season 20 finale performances as Simon Cowell called out Melanie "Mel B" Brown for a comment she made to one of the contestants. The awkward moment came after Micah Palace finished performing songs "Spanglish" and "No Sabo" on Tuesday, September 23. The Spice Girls alum, 50, had some advice for the 23-year-old finalist. "I just wanna give you a few words of advice: you've got to be nice to everybody, the crew, the people that dress you," she said. "'Cause if not, you're gonna meet them on the way back down, anyway.