Taylor Swift would probably be the first to admit that Maroon 5 rocks a little harder than she does, and she's clearly savoring that reality while the band performs one of her hits in an exclusive video clip from CMT Artists of the Year, a 90-minute special premiering Friday (Dec. 3) at 8 p.m. ET. Of course, the song choice was crucial. (For instance, it would be a little odd to hear Maroon 5 lead vocalist Adam Levine singing the lyrics for "You Belong With Me.") But well-written songs are usually adaptable to a wide variety of arrangements, as evidenced by the band's speeded-up, cranked-up and believable version of "Mine." Swift obviously approves of Maroon 5's cover version. Just look at the smile on her face as she and her friends rock back and forth when they're hearing it for the first time.