Baseball fans know that the 2011 championship match-up is between the Texas Rangers and the St. Louis Cardinals, who are tied 1-1 in the seven-game series. The pop star scored the honor after her big sister, Dallas, tweeted that Demi should sing 'The Star-Spangled Banner' during the MLB showdown. She relentlessly petitioned to make it happen, and it did!
Demi joins the likes of 'American Idol
' winner Scotty McCreery, Trace Adkins and Zooey Deschanel and Ronnie Dunn, who have all been asked to sing the song during this year's World Series. Game 3 airs tomorrow on Fox.