Ameripolitan has four categories: outlaw, rockabilly, western swing, and honky tonk.
Here’s an example of each of those four styles from a current nominee:
Rockabilly: Cherry Rat of Brazil
Honky Tonk: Malin Pettersen of Norway
Outlaw: Dallas Moore representing Texahio
Western Swing: Farmer & Adele of Nashville (He’s nominated for Western Swing Male, and she’s nominated for Western Swing Female)