Dierks Bentley might be a married father of three whose 40th birthday isn't all that far away. But the country star tells CMT age doesn't really make a difference in touring, and he feels "timeless out on the road." He also admits his maturity level tends to drop. Dierks says when he's on tour he'll "act like an idiot," and adds that he "probably will continue to do so" once he's "well into" his 40s. Bentley is spending this summer on his "Riser" tour, which also features Chris Young, Chase Rice, and Jon Pardi. But Friday night he's making a slight departure from his trek, and headlining the inaugural OKC Fest in Oklahoma City.