Hello! I might be the man for the job.
I'm a former Wikipedia administrator. As a freelance writer, I have published more than a hundred Wiki pages for different people and companies. They include several artists.
I will create a well-formatted page that is fully supported by online references. Before publishing, I will send you the draft so you can provide comments and proposals. Once we have agreed on the final article, I can publish it immediately.
Please tell me the artist's name in advance. I only accept a job if I believe it has a chance on Wikipedia.
Once I publish your page, we wait for 7 days. If the page has not been nominated for deletion in that time, you pay my fee. Otherwise you don't owe me anything.
My fee depends on the size of the Wikipedia article. If there is enough material for a short or medium article, it costs $120. If there are many sources and the article is complex, the price could rise to $200. I will tell you my exact fee once you tell me the subject.
Finally, a warning: Wikipedia administrators sometimes come to spy on Freelancer. When someone applies to your job posting, check whether they have reviews about their past work. If they have no reviews, don't tell them anything.
Let me know if you have any questions.