Urban was named Entertainer of the Year at the Las Vegas event, where Rhett won the Male Artist category and there was double success for Musgraves.
Jason Aldean, Maren Morris, Miranda Lambert and many more are also shortlisted for the 53rd ACM Awards, to be staged in April 2019.
The 2018 CMA nominees were announced with Chris Stapleton, Dan + Shay, Keith Urban, Jason Aldean and Miranda Lambert leading the pack.
The southern rock band will conclude their story where it began, in Jacksonville, Florida.
Florida Georgia Line have scored their fifth country No. 1 with 'H.O.L.Y.,' after one of the greatest climbs to the top of that chart in history.
2015 was a year of landmarks and exciting happenings in country music, celebrated in uDiscover's latest 20 Songs playlist.