"The best part of doing this job is when you are there and you can say, 'I was there at the beginning of someone's career and I witnessed a star,'" Simon Cowell praised. "Tonight, again, I've just witnessed a star emerge, because that's what you are. You're special, incredible, funny, talented and I think you're going to win."
To see if the judges' predictions come true, fans will have to tune in to the America's Got Talentfinals results show on Wednesday at 8 p.m. ET/PT on NBC.
For more on Farmer's beloved, hilarious performances throughout the season, check out the video below.