Students from 30 middle schools and high schools representing 11 states performed Friday night and Saturday during the Wheaton Warrenville South High School Choral Classic.
Roughly 1,500 students appeared onstage over the course of the two days and about 4,000 people were expected to attend. Organizers said it was one of the highest attended performance events in the school's history.
"I feel luck to have the opportunity to perform here," said Allison Ristau of Prospect High School in Mount Prospect.
"It's awesome to be able to compete with some of the best in the nation," said Johathan Lones of Mount Zion High School.
The competing show choirs were judged on their visual and vocal skills, with the Grand Champion expected to be crowned late Saturday night.