Remember last week, when the Pussycat Dolls were supposed to guest on the “Pop Goes Country” episode of Nashville Star? Well, they canceled for unknown reasons (my theories include their label being so cheered by the fact that “When I Go Up” wasn’t a flop, they decided the Dolls didn’t need to sell out that much, or Nicole Scherzinger and Jewel having some sort of behind-the-scenes tiff) and were replaced by Danity Kane, who performed their deathless track “Damaged” and showed the competitors the advantage of having taped backing vocals at the ready at all times. This is another one of those times that I think the performers on singing-competition shows should be required to meet with the vocal coaches as well, if only for breathing advice. Yeesh. [YouTube via That Grape Juice]