Yesterday’s Kanye-issued denial regarding Lady GaGa’s alleged appearance on the leaked single “Silly Boy” has been followed up by the hip-hop megastar saying that Rihanna isn’t singing on the track, either. Friends, this means pop fans on the Internet have a serious problem. After all, if we can’t believe the claims of people who anonymously leak half-finished demos of future chart hits to the Internet, who can we believe? [kanYe West: Blog]