Wikipedia
Bro-country is a subgenre of mainstream country music originating in the second decade of the 21st century. It is a general term for styles of country music taking influence from 21st-century hip hop, hard rock and electronic music. Many "bro-country" songs are about attractive young women, the consumption of alcohol, partying, and pickup trucks.
The first use of the term was by Jody Rosen of New York magazine in an article published on August 11, 2013. He used the term to describe songs by Florida Georgia Line, particularly their debut single " Cruise". He also named Luke Bryan, Jason Aldean, and Jake Owen to be notable singers of the genre. Entertainment Weekly also cited " Boys 'Round Here" by Blake Shelton, " Ready Set Roll" by Chase Rice, and " Redneck Crazy" by Tyler Farr as other examples of "bro-country".
The genre drew criticism from other country singers; artists who have spoken against the "bro-country" subgenre include Ray Price, Dale Watson, Jean Shepard, Willie Nelson, Alan Jackson, Gary Allan, Brad Paisley, Kenny Chesney, Travis Tritt, Kacey Musgraves, and Zac Brown. The popularity of the genre opened up a divide between the older generation of country singers and the bro country singers which was described as "civil war" by musicians, critics, and journalists.