Charles Oliveira is a Brazilian mixed martial artist widely known by the nickname “Do Bronx.” He became UFC lightweight champion in 2021 and is especially recognized for his submission skills and action-heavy fights. This recording’s exact creator and original upload are not confirmed, but elongated calls of his nickname circulate in combat-sports edits and fan posts. Creators often combine the chant with crowd cheering or an arena-style introduction such as Bruce Buffer's It's Time, keeping it relevant whenever Oliveira fights or produces another memorable highlight.