Demi Lovato is showing the world why she was selected as a judge for X Factor.

The 19-year-old songstress, with heavily bleached blonde and pink locks, belted out her latest hit "Give Your Heart A Break" at Good Morning America's Summer Concert Series.

When asked about her hectic schedule, Demi told the GMA audience:

    "I’m doing really good. I’m actually not tired, I get so much energy doing this stuff! I’m straight from tour to X Factor, to you know, everything!”

We're lovin' that Ms. Lovato is singing live. Perhaps her X Factor co-judge, Britney Spears, will take notice!