Conversation so far:
who sings the country song merry go round
Merry Go 'Round is a debut song recorded by American Country Music artist Kacey Musgraves.
did the song Merry Go 'Round win a grammy
Merry Go 'Round won the Grammy Award for Best Country Song at the 56th Grammy Awards.
what is the song merry go round about
Merry Go 'Round is a cynical observation on life in the American heartland.

Question: what did rolling stone think of the song
Self-contained rewrite: what did rolling stone think of the song merry go round