Taylor Swift graces the cover of the May issue of Rolling Stone, as the only country star to make the magazine's 'Best of Rock 2008' list.

"Swift is a rare blend of goofy teenager and polished saleswoman, which has let her tap into a huge market of country-loving teens," raves the magazine. "She can trade 'Napoleon Dynamite' quotes for hours, but she's also mastered the art of smooth-talking radio station personnel: her manners are as perfect as her complexion."

The article goes on to list some of the 18-year-old's many impressive accomplishments: 40 million visitors to her MySpace page, 15 weeks at No. 1 on the country album charts, three pop-crossover hits and more than 2.5 million albums sold. Those CD sales just might result in a visit to a tattoo parlor. Swift vowed early in her career that if she sold two million albums, she'd get a heart tattooed on her left foot. But that's a promise she doubts she can keep.

"I can back out of it," Swift tells Rolling Stone. "Mostly because my dad said he'd take it off with a belt sander!"

The 'Best of Rock' issue lists Swift as 'Best Country Lolita.' Other categories range from 'Best Rock T-Shirts' to 'Best Live Band' (Bruce Springsteen and the E Street Band) to 'Best Reunion (Led Zeppelin).