this is a piers morgan tonight fourth of july special. good evening. and happy fourth of july. what better way to celebrate america s independence than by honoring the country s olympic athletes, the pride of america. in just a few weeks they will be on the world stage in london competing for gold with billions watching. in the next hour, we ll hear their stories in their own words. it s revealing, moving, surprising and inspiring. we begin with allison felix, one fastest women in the world. as i found out, a superstar determined to win. she s making headlines for the unexpected way she made the women s 100 meter team. allison and jennifer set off a controversy. the plan fell apart when jennifer pulled out hours before the race, conceding the shot to allison. before that, the signature event, 200 meters at the top of her mind. allison, how are you feeling? primed and ready for the kill? i m feeling good. i m so excited. i just can t wait! is it like being a racehorse.