Sandy Hook chorus to sing 'America the Beautiful' at Super Bowl XLVII

Jan. 30, 2013: The Superdome is pictured in New Orleans. A power company says the cause of the Super Bowl blackout was a faulty device that had been installed to prevent a failure of electric cables leading to the Superdome. (AP)

The chorus from Sandy Hook Elementary School will sing "America the Beautiful" before Sunday's Super Bowl between the San Francisco 49ers and the Baltimore Ravens.

The chorus features 26 children from Sandy Hook Elementary in Newtown, Conn., where 20 first-graders and six adults were killed in a Dec. 14 shooting rampage.

The performance will be part of CBS's pre-game show, and will be broadcast live. Alicia Keys will sing the national anthem.