Kelly Clarkson will be singing the national anthem before the Super Bowl.  NBC confirmed it today, also announcing that Blake Shelton and wife Miranda Lambert will perform "America the Beautiful" prior to the NFL championship game. Their version of "America the Beautiful" is now available for download at iTunes.

Madonna is scheduled to perform at halftime.  She will be joined by Cee Lo Green for part of the performance.

It'll be Clarkson's first time performing at the Super Bowl and she is nervous.  For good reason! The average television audience for Super Sunday is 111 million viewers.

Look for Sugarland's Jennifer Nettles to appear in a Pepsi Max commercial as well!

Super Bowl XLVI takes place Sunday, February 5 in Indianapolis, IN, and will be broadcast live on NBC - kick off time is 3:30 p.m. (PST).