In the four-and-a-half decades since her national-chart début , she remains one of the most-successful female artists in the history of the country genre which achieved her the title of ` The Queen of Country Music ' , with NUMBER@1 number-one singles , and a record NUMBER@2 top-10 country albums .

She has become one of the most successful female country artists in history , with NUMBER@1 number-one singles -LRB- a record for a female country artist -RRB- and NUMBER@2 top-10 country albums -LRB- a record for any country artist -RRB- .
