The songs are connected to NFL teams. The connection may be the title of the song, the singer or the group, and it connects to the city (or state) or the team's name.

For example, a song by Linda Ronstadt and the Stone Colts would connect to the Indianapolis Colts.

The song may be about a city, while the the team is referred to by the state name, but in this case, the city is the actual home of the team.

In one case, the clue contains two teams.

NFC
AFC