Video of the spectacle, uploaded to YouTube on Friday, quickly garnered attention for the Los Angeles County school of about 3,500 students.
The uncut clip, which runs about 5-and-a-half minutes, features youngsters and adults lip-syncing, dancing, and so much more, throughout the school and its grounds.
School representative Ryan Foran said it took one month to organize and coordinate the feat. He said the recording was made in one take during a lunch break last week.
Foran said the video, which is a first for the school, features every sports team and club.
According to the YouTube post, Arcadia High opened in 1952 and is home to nationally-recognized performing arts and athletics programs.