It's yet another groundbreaking first for Taylor Swift ... just one of so many stunning examples of why the 20-year-old singing phenom deserves not only to be called the CMA's Entertainer of the Year, but also Billboard's Artist of the Year.

On Monday, Taylor's song, 'Fearless,' was released as a single. GAC reports it is the first time in history that country radio has been shipped a single that has already been certified gold by the Recording Industry Association of America. The title track of Taylor's multi-platinum-selling CD is a song Taylor wrote about taking courage on the dating circuit.

"No matter how many break-up songs you write, no matter how many times you get hurt, you will always fall in love again," says Taylor. "When I wrote 'Fearless,' I wasn't dating anyone. I wasn't even in the beginning stages of dating anybody. I really was all by myself out on tour, and I got this idea for a song about the best first date. I think sometimes when you're writing love songs, you don't write them about what you're going through at the moment, you write about what you wish you had."

'Fearless' is one of three songs on Taylor's sophomore album that has already been certified gold, without ever being released as a single.The other two that have already sold 500,000 digital single downloads each without ever being released are 'You're Not Sorry' and 'I'm Only Me When I'm With You.'

In October, Taylor scored 14 awards for digital singles downloads of individual tracks off her album ... including a quadruple-platinum award for selling 4 million copies of her No. 1 smash, 'Love Story.'

Taylor Swift Performs 'Fearless' Live