February 24, 2009 8:56 pm Oh, Say Can You Sing … Ever wanted to kick-off a sporting event by singing the national anthem? Listen to these patriotic songbirds audition for a guest spot at Dallas’ Lone Star Park horse track. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look