Bauch Beine Po is a song by German rapper and singer Shirin David, released in 2024 and built around a catchy, fitness-themed chorus naming stomach, legs and buttocks in German. The track spread quickly on TikTok, where users paired it with workout routines, dance challenges and gym humour, turning its title phrase into a shorthand for training motivation. Its playful tone and instantly repeatable hook have kept it popular in short-form edits long after its initial chart run.