The 10th season of American Idol just ended last week – and its impressive ratings prove we’re still suckers for a pop star Cinderella story. But how do you get from singing in your shower to performing on TV to millions of people? You might try Boston’s Berklee College of Music, one of the top conservatories in the country, which offers a singing class online. Reporter Sarah Lemanczyk was our guinea pig. (Originally aired: May 21, 2010)