The top of the pop charts has become a low, low, place indeed. Just last summer, the singer Cee-Lo took popular culture one rung lower into the sewer with the release of his song titled “F— You.” After a few weeks, it was mainstreamed into “Forget You,” but why bother? While both versions sold well, the vulgar one clearly had its intended effect. The pop star Pink now has her own version with her new single titled “F—in' Perfect.” How creative. That’s reaching for the stars. Once again, there are two versions, with the words “less than” replacing the profanity. Again, why bother pretending to be concerned about standards? The original song contains seven F-bombs. She asks “don't you ever ever feel / Like you're less than f—in' perfect,” and then insists “you're f—in' perfect to me!” It's topped the charts at iTunes – deliberately putting profanity smack dab into children's iPods from coast to coast. (You can thank LaFace Records and its Japanese parent company Sony Music, the second-largest global provider of recorded music.) Like Cee-Lo's “F— You,” the F-bomb is utterly unnecessary. It's only there for naughty “buzz.” The video for “Perfect”