If you are looking to learn, perform, or analyze this "piece" of music, here are several resources: Choreography & Performance
: Felix often highlights the "headache" (Meori apeuda) move and the addictive leg-wiggle sequence as the song's signature choreography. Musical Arrangements For musicians looking for sheet music or covers: Stray Kids Side Effects
: Tutorials are available to learn the specific pre-chorus and chorus sections , which use a unique triplet rhythm counted as "one and a two and a three and a four". If you are looking to learn, perform, or