Harlem Shake videos last 31 seconds and feature an excerpt from the song "Harlem Shake" by electronic musician Baauer. Usually, a video begins with one person (often helmeted or masked) dancing to the song alone for 15 seconds, surrounded by other people not paying attention or unaware of the dancing individual. When the bass drops, the video switches to the entire crowd doing a silly dance for the next 15 seconds. In the second half of the video, people often wear crazy outfits or costumes while wielding strange props.
