According to Washington Post, Demi Lovato is set to perform to sing at National Anthem at the World Series games on Sunday Night! Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) 0 comment 0 Facebook Twitter Google + Pinterest previous post New Demi Lovato X-Factor Hi Res Promotional Photoshoots! next post Demi Lovato on Rachel Ray Show TV Stills! Leave a Comment Cancel Reply Notify me of follow-up comments by email. Notify me of new posts by email.