Sad Song was the seventh mini-EP by the South Korean group P1Harmony, released in 2024 through FNC Entertainment. The record centred thematically on feelings of loneliness and emptiness and on overcoming them, wrapped in a superhero concept. With the title track "Sad Song" the group combined energetic K-pop production with hip-hop and pop influences. Besides the title song, the EP featured tracks such as "It's Alright" and "Last Call". With this release P1Harmony confirmed its position among the newer generation of K-pop groups.