Meghan Markle stunned TV viewers by making a surprise appearance on the live final of America's Got Talent. The Duchess of Sussex dropped by to give a special good luck message to singer Archie Williams. Speaking from the living room of her Los Angeles home, Meghan told how she and Prince Harry had been captivated by Archie's story. At his first audition, Archie told how he had spent 36 years in prison after being wrongly convicted of rape and attempted murder at the age of 22. Show host Terry Crews told him;??? All through this season Archie your story and your talent have touched and inspired people around the world and we have a very message for you from a special fan... Meghan, Duchess of Sussex.' A smiling and waving Meghan then appeared on screen. And the former actress said:??? Hi Archie, Just wanted to let you know that we've been so moved by your story and we've been cheering you on every week and it's not just because we're partial to the name. "So, a very special message to you that I'll probably be saying all of my life, but on this night it's specifically for you: Archie, we are proud of you and are rooting for you, we can't wait to see what you do. We're in your corner, have a good night." The now 59-year-old man was wrongly convicted of rape and attempted murder in Louisiana. At the 12-year mark he appealed to the Innocence Project to help exonerate him. Years later, fingerprints found at the scene of the crime matched those of a serial rapist and Archie was freed. In the end Meghan's seal of approval wasn't enough to land Archie the big win as he lost out to spoken word artist Brandon Leake in the final.