Jason Aldean might be selling out amphitheaters across the country on his 2024 Highway Desperado Tour, but to his young children Memphis and Navy, that’s nothing special. The singer’s family — also including his wife Brittany — frequently join him on the road, and they’ve seen enough shows to not get too excited about all the bright lights and cheering fans. In fact, during Aldean’s most recent concert, Memphis wasn’t paying attention to the music at all — even though he was sitting sidestage. Brittany shared video of the hilarious moment, zooming in on the six-year-old boy to show wearing ear…