AJ McLean performs a solo concert at Royale Nightclub in downtown Boston, delivering a set that blends pop with rock-driven energy. The historic 33,000-square-foot venue, housed in a former opera house dating to 1918, provides a distinctive backdrop for the show with updated sound and lighting. As a member of the Backstreet Boys, McLean brings star-power and decades of stage experience to this notable entry in Boston’s live music scene.