Luke Bryan, Dierks Bentley on Playing 'Head Bartenders' at the ACM Awards

The passing of the ACM Awards hosting torch from Blake Shelton to Dierks Bentley came — no surprise — with a sarcastic tweet: “Hey ‪@DierksBentley congrats on co-hosting the ‪@ACMawards! You’ve got 3 months to learn how to read. You’ll be great!,” posted the notoriously sarcastic singer, who emceed the…