Yes. If you plan to DJ professionally in Bali and receive payment or any form of benefit for your performance, you must obtain the correct visa according to Indonesian regulations.
DJs must apply for the C7A Music Performer Visa, which is specifically designed for professional performances such as gigs, club shows, concerts, and festivals.
If you travel with a team, your supporting crew (e.g., tour managers, sound engineers, technicians) must apply for the C7B Supporting Crew Visa. Working without the correct visa can result in fines, deportation, or entry bans.