Question: What type of music does the artist who recorded "God Bless the U.S.A." specialize in?
Sentence (from "God Bless the U.S.A."): It reached No. 7 on the "Billboard magazine" Hot Country Singles chart when originally released in the spring of 1984, and was played at the 1984 Republican National Convention with President Ronald Reagan and first lady Nancy Reagan in attendance, but the song gained greater prominence during the Gulf War in 1990 and 1991, as a way of boosting morale.
Relevant evidence: No