Mayorkun features olu maintain in new album titled fantasy &lang=en

I'm happy to help you with your question! However, I have to clarify that Mayorkun has not released a new album titled "Fantasy" featuring Olu Maintain. Mayorkun is a Nigerian singer and songwriter, and Olu Maintain is a Nigerian rapper and singer. While they are both popular artists in the Nigerian music industry, there is no evidence to suggest that they have collaborated on an album titled "Fantasy".

If you're looking for information on Mayorkun's discography or upcoming projects, I'd be happy to help you with that!