Grammy Award winning Keith's announcement comes as he rounds off his performances at CMA fest.
He also took to Twitter on Monday to praise his wife Nicole Kidman's latest season of Big Little Lies, which just premiered this week.
"What a night -I get to play #CMAfest right after the premier of #BigLittleLies season 2 on HBO at 9pm. (I’m telling you now- this season is sooooooooooo gooood !!!!) CONGRATS to all the BLL cast and crew ! so proud of you baby girl Xx!!! - KU" Keith posted.