You can’t win them all. Even in the late-night TV music game. Look no further than Thursday night’s less-than-stellar offerings. Start (or don’t) with Brian Wilson of The Beach Boys, plinking and warbling his classic track God Only Knows for The Late Show With Stephen Colbert — while apparently hanging out in the room where he stores all the gold and platinum records he doesn’t care about. Want more? Try to sit through Alanis Morissette and her irritatingly relentless vibra-ah-ah-ah-ah-ah-to as she debuts the song Diagnosis from her upcoming album, Such Pretty Forks in the Road, on The Late Late Show With James Corden. God only knows why neither of them can manage to perform while looking at the camera.