The Acad­emy of Coun­try Music has launched a “Tweet to Unlock” cam­paign to reveal the date of the 2013 ACM Awards and who will be co-hosting the event with Blake Shel­ton. Fans should visit acmcountry.com and click the “Tweet” but­ton to get the results. The sooner the page receives 25,000 tweets, the sooner ACM will reveal the show date and Blake’s co-host. Fans will also get to see video of Blake dis­cussing the selec­tion of his co-host.