This may be the most famous mother and daughter country duo of all time. Throughout the '80s and early '90s, Wynonna and Naomi Judd recorded six studio albums and charted 14 No. 1 hits. They've reunited from time to time since calling it quits in 1991, but Wynonna has mostly focused on her solo career, which has been nothing to sneeze at. Any list of country stars with their mothers would be incomplete without mention of the Judds.