Got Reprimanded For It But I Don't Care

So yeah, I got in trouble with my supervisor for playing my favorite K-pop playlist during a busy shift. Patients were asking why the radio was so loud and upbeat. I just love it when 'Gangnam Style' comes on, gets me through even the toughest part of the night shift. My boss said it's unprofessional, but honestly? If music helps keep everyone in high spirits, what's the harm? I'll probably do it again if no one's looking.