Jason Aldean and Brooks & Dunn were supposed to play a joint show tonight (May 30) at Fenway Park in Boston, but it's been cancelled due to safety concerns.

The cancellation was initiated by the city's inspection services department after they saw something suspicious with the performance stage. They did not go into detail about the concern, but they were unable to give the green light for the shows to take place. Sources says that is was not due to a security concern, but a safety one.