Brantley Gilbert was at a loss for words recently after ... "Hey Aaron, what the hell am I gonna do with a donkey and a zebra?" he asks as Keiser cracks up on the other end of the phone.

It seems Brantley ... Gilbert "Knows His Priorities" After Leaving Stage Mid-Concert Amid Family Emergency At that point, Gilbert called his friend and manager, Aaron Keiser. "Hey Aaron, what the ...