Check this out in case you haven't heard it already! Greyson Chance sings the song Paparazzi by Lady Gaga in this video (at the bottom of the page when you follow the link). Not a huge fan of Lady Gaga (she's WEIRD!!) but he sings the song well. This guy is really good, although not quite as good as Justin Bieber! Lol.
P.S. If you have already seen this video, you will be happy to know that Greyson was signed to a record company because of his performance!