If you haven't heard of Greyson Chance, you need to step out from under The Rock already.
But just to recap: Greyson Chance is a 12-years-old boy whose video on Youtube became viral after singing Lady Gaga's "Paparazzi" at a talent show back home in Oklahoma.
American Idol judge and talk show host, Ellen DeGeneres just happened to come across the video online and invited Greyson on her show earlier this month.
The ...