How many people in the world sing?

It's difficult to determine an exact number of people who sing worldwide, as singing is a widespread and varied activity enjoyed by people of all ages and cultures. Estimates suggest that billions engage in singing recreationally, whether in choirs, Karaoke, or informal settings. Additionally, many people sing as part of their professions, including musicians and performers. Overall, singing is a universal form of expression that spans across nearly all societies.