Explain simply why American recording artist Sam Cooke is the correct answer to: Passage: "A Change Is Gonna Come" is a song by American recording artist Sam Cooke. It initially appeared on Cooke's album Ai n't That Good News, released March 1, 1964 by RCA Victor; a slightly edited version of the recording was released as a single on December 22, 1964. Produced by Hugo & Luigi and arranged and conducted by Rene Hall, the song was the B-side to "Shake".

Question: Based on this passage, who sang a change is gonna come first?. Explanation:
The relevant information is: "A Change Is Gonna Come" is a song by American recording artist Sam Cooke.