ustin Bieber is on a roll. And so is Demi Lovato. This week there are reports or Justin Bieber appearing on Oprah and this is on top of the appearances he has already made on SNL and Jay Leno last week. Demi Lovato is another teen heartthrob who will be seen making an appearance on Greg's Anatomy series. Demi Lovato's episode will be aired on May 13th and her character's name is "Hayley", according to multiple sources.

Justin Bieber on the other hand has taken television audiences by storm. He is on a whirlwind tour of U.S. late night shows and has already appeared on Jay Leno, Chelsea Handler, SNL and now if all goes well, will be featured on Oprah. The 16 year old, is definitely on a roll. It is just a mere co-incidence that both Justin Bieber and Demi Lovato are singers, song-writers turned television celebrities now.