The videos usually last between 30 and 32 seconds and feature part of the 2012 song "Harlem Shake" by American electronic musician Baauer. Baauer's song starts with a 15 seconds intro, a bass drop, then 15 seconds with the bass, and a lion roar at the end of the first 30 seconds. 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 seemingly unaware of the dancing individual. When the bass drops, the video cuts to the entire crowd doing a crazy convulsive dance for the rest of the video. Additionally, in the second half of the video, people often wear a minimum of clothes or crazy outfits or costumes while wielding strange props.