This marks Stapleton's first nod in the category while Urban and Bryan received their eighth and sixth nominations, respectively.
If Aldean takes home the top prize of the night, it would make him the eighth ever ACM Triple Crown winner. Brooks has received the most Entertainer of the Year awards in the history of the show.
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The 2018 ACM Awards will broadcast live from the MGM Grand Arena in Las Vegas on Sunday, April 15 at 8 p.m. ET on CBS.