If musicians do follow same step, I think there would be massive adoption as most of them are Bitcoin informed and inclined. Artists could help spread the move on Bitcoin adoption.
Do you think this would be realized if it is given attention to.
The influence of sportsmen and entertainers of every sector cannot be overemphasized. Most of the have a very large fan base and fellowship that some Presidents of nations don't have. Some of them have die-hard followers that see these celebrities are demigods. Yes, they are one of the potent means of advertisement. In my country most cryptocurrency firms use musicians as their brand ambassadors and it has really contributed to their acceptance.
People act on their personal gain or interest. We have had companies, trust funds, payment gateways and even individuals like Elon associate with Bitcoin to market themselves or their services.
If musicians or sport teams do not see the personal gain, they would most likely not associate with the technology.
Due to the influence most of these celebrates have on their followers, most crypto companies use them to take advantage of their fans. We have had issues where fraudulent companies connive with these stars to defraud people. Many scam firms have paid these celebrities heavily to promote their services or shitcoins thereby attracting unsuspected investors that ended up losing their funds.