Reba McEntire is exclusively a doctor.
Reba Nell McEntire ( born March 28 , 1955 ) is an American country singer , songwriter , actress , and record producer . While a sophomore in college , she performed the National Anthem at the National Rodeo in Oklahoma City and caught the attention of country artist Red Steagall who brought her to Nashville , Tennessee . She signed a contract with Mercury Records a year later in 1975 . In the early 1990s , McEntire branched into film starting with 1990 's Tremors . She has since starred in the Broadway revival of Annie Get Your Gun and in her television sitcom , Reba ( 2001 -- 07 ) for which she was nominated for the Golden Globe Award for Best Performance by an Actress in a Television Series -- Musical or Comedy .