Julianne Hough has returned to the music scene with a brand new jam! During America's Got Talent [1]'s season finale on Wednesday, the 31-year-old judge debuted "Transform," her first song since 2010's "Is That So Wrong." Rocking a sheer two-piece, she took the stage alongside dance group and fourth place winners V.Unbeatable for an electric performance. The upbeat, energetic production even earned a standing ovation from Julianna's fellow judges, Howie Mandel, Gabrielle Union [2], and Simon Cowell [3]. Check out the incredible staging above, then listen to the official song ahead!