"Sugar/Tzu" is a song by English rock band Black Midi, released in 2022 as the third single from their third studio album, Hellfire. The song tells the story of a futuristic boxing match wherein one of the contenders is assassinated by a young boy. It was released with a music video directed by Noel Paul that went on to win "Best Cinematography in a Video" at the 2022 UK Music Video Awards. A live recording of the song at Electrical Audio was released on flexi disc and bundled with copies of Hellfire sold in independent record stores in the United States.

Black Midi are an English rock band from London, formed in 2017 and currently consisting of Geordie Greep, Cameron Picton, and Morgan Simpson (drums). The trio has been frequently joined by Seth Evans and Kaidi Akinnibi (saxophone) in both studio and live performances since 2020. Their name is derived from the Japanese electronic music genre black MIDI, though their own music has no relation to it, instead incorporating styles such as math rock, progressive rock, post-punk, and avant-jazz.