The obvious solution is to introduce quotas. However, this would need to apply to winners too, for true equity of outcome. Such as half the winners must be female, at least one must be gender non binary (that would please Sam Smith) etc.
In fact, the word “best” should be removed as it suggests one person is superior to others. I suggest “Most Equitable Artist”. It’s also so out of date that these people are being judged solely on their music. They should be considered on far more important factors such as their identity and how much they talk about social justice.
In fairness, I did see a similar article yesterday and barely recognized the guy, kinda remembered him as a singer and then fell asleep and dreamt of rocks growing stubby feet and scurrying off into the surf.