The name pairs two well-known European football clubs, Fenerbahçe from Istanbul and Chelsea from London, and the clip circulates online as a short, ready-to-drop football crowd sound rather than a studio recording. Fans and editors use it to mark the tension of a big European night, especially in rivalry edits, goal reactions and matchday montages where a real stadium atmosphere does more work than commentary. Because the chant is instantly recognisable as football support, it has stayed useful for short videos that need immediate matchday feeling without a long build-up.