The RIAA recognizes Carrie Underwood as the Top Country Artist of all time , and number 5 in highest-certified female artist on its Top Artists ( Digital Songs ) ranking , with 30 million certified units .
The Recording Industry Association of America recognizes Underwood as the Top Country Artist of all time and the fifth highest-certified female artist on its Top Artists ( Digital Songs ) raking , with 30 million certified units .
Carrie Underwood