One of the reasons Brantley Gilbert wanted Ashley Cooke to join him on his new single “Over When We’re Sober” is because he knew his famous co-writer couldn’t. Gilbert, Brock Berryhill and Justin Wilson wrote the song with Jelly Roll during a songwriting weekend at Lee Brice‘s farm. “There were a few of them, this one included, where nobody wants to see me and Jelly Roll sing together,” Gilbert jokes with Taste of Country Nights. “Over When We’re Sober” is the newest Gilbert single from an upcoming, TBA project.It’s the third straight collaborative single for the “Bottoms Up” hitmaker.Earlier …