Demi Lovato confirmed in July 2011 that she was working on a duet with the producer. The first single off the album, "Skyscraper", premiered on July 12, 2011.Lovato scored her first top 10 debut on the Billboard 100, as "Skyscraper" debuted at number 10.On October 24, 2011, Lovato performed the National Anthem at Game 5 of the 2011 World Series.Check Out These Photos>>