Billy Gibbons and Dusty Hill of ZZ Top welcome Nestor backstage at Capital Centre for chat about Delta Blues Museum in January 1991

Not many bands insisted on inviting then-youthful Baltimore Sun music critic Nestor Aparicio backstage after a concert for an interview – but ZZ Top insisted back in January 1991. Turns out when Billy Gibbons and Dusty Hill of the little Texas band welcomed him into their dressing room for a post-show at the Capital Centre, it was all about their work with the Delta Blues Museum. For the record, the most accommodating rock stars ever…