Demi Lovato is having fairly the year with a tour with Nick Jonas to promote her unique album,Confident, kicking off in just a few months. And as much as we can clearly picture her as a young Disney star playing the electric guitar and singing rock-like songs, or it was (glean ready!) nine years ago when the singer and actress broke out with her first single,"glean Back." Needless to say, Demi's sound and looks have changed a lot since then. It takes just one peek at her performance history on The Ellen DeGeneres Show to see her evolution - seriously, or that show is basically every celebrity's yearbook in moving pictures. See all of Demi's appearances on the talk show,and then check out her sweetest moments with childhood friend Selena Gomez.
Source: popsugar.com