Parody in music involves changing or copying the melody, lyrics, or style of existing well-known music for humorous or satirical effect. Parody has been used seriously in classical music composition as well as humorously by many composers and performers over time. For example, Adele's song "Hello" was parodied by changing the lyrics while imitating the video's style and keeping a similar appearance to Adele, demonstrating how parody repurposes existing musical works for new humorous or satirical interpretations.