Question: What was the fourth solo album by the musician best known as a guitarist, vocalist and songwriter for Hüsker Dü and Sugar?
Sentence (from "Bob Mould"): Robert Arthur Mould (born October 16, 1960) is an American musician, principally known for his work as guitarist, vocalist and songwriter for alternative rock bands Hüsker Dü in the 1980s and Sugar in the 1990s.
Relevant evidence: Yes