The Small Town Tour round of American Idol is judged by two of the show's producers.
They will determine whether participants make it to another round, and eventually, on to the celebrity judges.
They said they loved Kentucky when they held auditions in Louisville during previous seasons, and were excited to come back to the Bluegrass, saying it's towns like these that really represent the American spirit.
"Bowling Green was the perfect place," said Idol producer Katie Fennelly.
"Absolutely... I mean, since we've been here, we've seen this city is sort of "Americana" you know. The people here have been incredibly gracious, and I think we absolutely made the right decision," said Idol Producer Norm Betts.
Producers say that of the ten small town bus tour cities they've been to, Bowling Green had the largest turnout by far.
It's yet to be determined exactly how many participants attended, but a final number will be known by the end of the day.