Jason Aldean headlined Today’s Citi Concert Series this morning (Aug. 25) in New York’s Rockefeller Plaza. Jason’s four-song set included three of his past No. 1 hits—“Lights Come On,” “Dirt Road Anthem” and “Any Ol’ Barstool”—as well as his new single, “They Don’t Know,” which is currently No. 9 on Billboard’s Country Airplay chart. In…