{Chris Daughtry to sing at Game 7 of World Series| The rocker is best known for being a finalist on “American Idol.” fAfter he was voted off the fifth season of “American Idol,” he started the band Daughtry|Their 2006 album, “Daughtry” went triple-platinum|Game 6 ended in a nail-biting surprise comeback.St|Grammy-nominated country singer David Nail will sing “God Bless America” before the game|(CBS/AP) Chris Daughtry of Dauhtry will sing the national anthem at the final game of the World Series.