Sometimes it is frustrating that there is no art for a CD or a single. That's the reason why I create covers for songs or albums (unreleased, leaked or don't have a proper release).
You can watch some examples of it:
Not a proper release: Anastasia Stotskaya (Анастасия Стоцкая) released in 2003 "Вены-реки". Since I didn't find a CD or single from her, I create a single cover for the song.
Unreleased/Demo: Leona Lewis recorded Burn for her 3rd album Glassheart (2012) however, the song was not included on the album and eventually, the song was released in 2013 by Ellie Goulding.
MP3 Free: Why by Serebro was offered for free on their website without a cover. The song was re-recorded with new member Anastasia Karpova and was included on their second album, Mama Lover (2011).
I enjoy doing cd covers.