Question: What is the cause of death of performer of song Anna'S Song?
Sentence (from "Anna's Song"): Recorded during the midst of Marvin and estranged wife Anna going through an acrimonious divorce, the song autobiographically depicted several parts of Marvin and Anna's past including one lyric that hints at his first hit single, "Stubborn Kind of Fellow" where Gaye says What's it, husband, makes you so stubborn?.
Relevant evidence: No