Bryan, the reigning ACM Entertainer of the Year, made the announcement Tuesday on Twitter. The show will be broadcast live April 3 from the MGM Grand Garden Arena in Las Vegas.
"When we found ourselves searching for a new co-host I didn't have to look much further than my own circle of friends so Dierks was a natural choice," Bryan said in a statement. "We have a lot of fun together and I know the fans will be in for something special."
Last year, Bryan and Blake Shelton were co-hosts.