Earlier this year, America's Got Talent turned to YouTube in its ongoing quest to find America's hottest performers. Thousands of people submitted audition videos to perform live on the show and tonight, at 9 p.m. ET/PT on NBC, you can finally see which 12 YouTube contestants made it.

There are some big dreams riding on this edition of America's Got Talent, along with a lot of support for the singers, musicians, dancers and other aspiring stars who submitted their videos with the hope of being discovered.

Good luck to all of our talented contestants and to everyone who entered the competition. And don't forget to watch the top entries on the America's Got Talent YouTube channel before tonight's broadcast!

Lee Hadlow, Marketing Program Manager, recently watched “America's Got Talent Winning Moment Season 4.”