"There should never be guilt in pleasure," John Mayer wrote this year to his nearly 2.8 million Twitter followers, in reference to a Miley Cyrus song. The 32-year-old singer, songwriter, and bluesy guitarist has also taken aim at jaded souls who acknowledge liking a popular song by saying they "actually" like it—the implication being, I guess, that you wouldn't have expected such a tasteful person to like that song, and thus that it's still, on some level, a guilty pleasure. To me, "Who Says"—the first single from Mayer's fourth... More >>>