A short, separate scene underwater actually was filmed the day before the other takes.
Courtesy by Glenbrook South High School
Glenbrook South High School student cameraman John Paul O'Rourke is guided by Kevin Mathein while videotaping the school's 50th anniversary video, which features the entire school.
Courtesy by Glenbrook South High School
Early on in Glenbrook South's 50th-anniversary "Lip Dub" video, a cheerleader leads the crowd, and the camera, up the stairs and through a hallway.
In the middle of Glenbrook South's 50th-anniversary "Lip Dub" video, a wigged dancer leads spirited classmates down the hallway.
At the end of Glenbrook South's 50th-anniversary "Lip Dub" video, a cameraman aboard a helicopter captures students organizing into the school's abbreviation on the football field.
Glenbrook South High School's Mark Ferguson, director of television and film production, instructs student cameraman John Paul O'Rourke, left, and senior director Connor Smith during filming of the school's 50th-anniversary video featuring the entire student body.
Courtesy of Glenbrook South High School
Troy Farsakian, a senior at Glenbrook South High School, shows the planning board used to produced the school's 50th-anniversary video.
George Leclaire | Staff Photographer
Glenbrook South High School student cameraman John Paul O'Rourke is guided by Kevin Mathein while videotaping the school's mascot on a rented horse for taping of the school's 50th anniversary "Lip Dub" video.
Courtesy by Glenbrook South High School