Beginning this Wednesday, September 12, 2012, pop star Demi Lovato is likely to expand her fan base well beyond her dedicated teenage followers when she debuts as a judge on the second season of X Factor USA. She has topped the album chart and reached the top 10 on the Billboard Hot 100. Just last week Demi Lovato topped the mainstream pop radio chart for the first time. Now is the perfect time to look back and learn more in the Demi Lovato profile.
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