When used as a noun, cover refers to a recording by an artist who is not the original songwriter. When used as a verb, cover refers to the act of recording the song.
The New Formula for Success in the Music Business
The old method of promoting a new act in the music business was for a record company to invest at least $500,000 in studio time with a good producer, the cost of a good video, the advertising budget, and the cost of the first promotional road tour.

