Live music producer Ola Melzig reviews live music from movies including 'Eurovision Song Contest: The Story of Fire Saga,' 'Camp Rock 2,' 'A Star Is Born,' 'Pitch Perfect 3,' 'Spice World,' 'Josie and the Pussycats,' 'Rock Star,' 'Almost Famous,' 'This Is Spinal Tap,' 'Nashville' and 'Glee.'