Demi Lovato [1] delivered a beautifully emotional performance [2] of her new song "Anyone" [3] during Sunday night's Grammy Awards. The 28-year-old singer poured her heart onto the stage in a moment few viewers will ever forget, and she tapped designer Christian Siriano to craft a gown worthy of such a performance.

Shortly after Demi's triumphant return to the stage, Christian sent out a message of support [4] on Twitter. "I love you and love creating for you!!!" he wrote, referencing Demi. His custom gown provided an elegant addition to an already-iconic night for Demi. Her stylist, Law Roach, completed the look with a Zana Bayne corset and Lesilla shoes. Keep reading for a closer look at Demi's unforgettable evening.