Maine South orchesis dancers perform the opening number of their show, "Under the Big Top," on the Park Ridge high school's stage. The dance troupe is performing pieces from their show at Walt Disney World on Jan. 18. | Curtis Lehmkuhl~Sun-Times Media

The Maine South orchesis dance troupe performs the first number of their show "Under the Big Top" during rehearsal at the school January 9, 2013. | Curtis Lehmkuhl~Sun-Times Media

Maine South junior Dora Bialy runs through her ringmaster routine during rehearsal for the dance troupe orchesis's performance of "Under the Big Top" at the school January 9, 2013. | Curtis Lehmkuhl~Sun-Times Media

Maine South junior Dora Bialy runs through her ringmaster routine during rehearsal for the dance troupe orchesis's performance of "Under the Big Top" at the school January 9, 2013. | Curtis Lehmkuhl~Sun-Times Media

Maine South sophomore Caitie O'Rourke performs with the orchesis dance troupe during rehearsal for their production "Under the Big Top" at the school January 9, 2013. | Curtis Lehmkuhl~Sun-Times Media

The Maine South orchesis dance troupe performs the first number of their show "Under the Big Top" during rehearsal at the school January 9, 2013. | Curtis Lehmkuhl~Sun-Times Media

Maine South senior Maggie Fleita performs with the orchesis dance troupe during rehearsal for their production "Under the Big Top" at the school January 9, 2013. | Curtis Lehmkuhl~Sun-Times Media