But this week, Liv Grace Blue, who is a Katy Perry superfan, decided to give it a go, singing “I Kissed a Girl.” “I feel like my whole life is going to flash before my eyes,” the 17-year-old from Los Angeles told her mother when asked how she would react to meeting Katy for the first time. Then she added, “I have loved Katy Perry since her first song came out. Katy Perry is my icon. She’s perfect.” But will Katy think Liv Grace is perfect in return and give her a golden ticket to Hollywood? Tune in to American Idol on Sunday at 8 p.m. ET/PT on ABC to find out. Next, is Katy Perry pregnant?