Gesang der Jünglinge, or 'Song of Youths', is a pioneering choral work composed by Karlheinz Stockhausen in 1955. It is significant for being one of the first pieces to integrate electronic music with live vocal performance, representing a bold step in the exploration of sound and technology within 20th-century classical music. The piece features a unique blend of boys' voices processed electronically, showcasing the innovative use of technology in music composition and performance.