While some celebs are using Twitter as a means to raise money for charity, others are saying adios to the micro-blogging website. Last week, Miley Cyrus decided it was time to delete her Twitter account. And while she didn't give an official explanation as to why she walked away from her 2,000,000+ followers, there were many rumors as to why she felt it was time to bid farewell to the popular social networking site. Well, she has just posted this rap video, which includes all of the reasons and then some. From being too busy, to wanting her private life private, Miley sets the record straight. Do you think she'll be back? Or do you think people are getting Twitter-exhausted and more people will follow her lead?