Read More: The 13 Best Lyrics From Morgan Wallen's I'm the Problem Album The song lifts inspiration from Keith Whitley 's "Miami, My Amy," and when fans first heard it, they had some mixed thoughts.

The singer joined Wallen onstage during a Miami tour stop, but fans quickly noticed he needed some help remembering the song's lyrics.

Dunn had joined Wallen to sing the latter’s 2018 song “Whiskey Glasses,” but eagle-eyed fans quickly spotted Dunn looking at the song’s lyrics on a piece of paper during the performance.

Morgan Wallen's State Farm Stadium show offset earnest songs with an incendiary "I'm the Problem." And yes, that was Diamondbacks star Randy Johnson.

Ronnie Dunn pokes fun at himself after fans catch him using a lyric cheat sheet during a surprise performance of 'Whiskey Glasses' with Morgan Wallen in Miami.