Question: Kelly Willis included a cover of a 1977 song by which country music duo?
Sentence (from "The Kendalls"): Between 1977 and 1985, 22 of their singles reached the top 40 on "Billboard"s country singles charts, including three number one hits, "Heaven's Just a Sin Away" (also a No. 69 pop hit), "Sweet Desire", and "Thank God for the Radio"; eight additional singles reached the Top Ten.
Relevant evidence: No