Juan Gabriel Discografia Ultima Mega ✓ 〈PLUS〉

I should structure the response by first giving an overview of his career, then breaking down his discography into studio albums, compilation albums, and maybe singles. Also, note any posthumous releases. Mentioning his genre, popularity, and legacy would provide a complete picture. Be careful not to include incorrect info about albums released after 2016. Check if "Última Mega" refers to a specific compilation; if not, it's just a thorough discography. Maybe include some links to where they can access his music legally. Wrap up by emphasizing his lasting impact on music.