Throwback Pics: Behind the Scenes at the Academy of Country Music Awards

A new book, This Is Country, offers an exclusive peek at 50 years of the show's most memorable moments

RED LETTER DAY

For her performance on the 2009 show, Carrie Underwood donned a lava-like dress (designed by Rafael Cennamo). "It basically stood up by itself," she says of her gown. "Someone had to crawl under it and put my shoes on!"