Despite several inches of snow on the ground today in the Washington region and a winter that just won't seem to end, the Nationals begin their season in just a week. It may be a little disconcerting to think about a sunny day at Nats Park right now, but a tweet last night from Bryce Harper may help. The N.L. Rookie of the Year revealed his walk-up songs for Opening Day. Included in his choices are two new songs, plus one he used for much of last season.