Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: Singer Christina Aguilera performs during the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: Former MMA Champion Chuck Lidell attends the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: A general view of atmosphere during the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: A general view of atmosphere during the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: Singer/actress Lea Michele performs during the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: Singer Christina Aguilera attends the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: Singer Christina Aguilera performs during the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)

Bridgestone Super Bowl XLV Pregame Show

ARLINGTON, TX - FEBRUARY 06: TV personality Maria Menounos attends the Bridgestone Super Bowl XLV Pregame Show at Dallas Cowboys Stadium on February 6, 2011 in Arlington, Texas. (Photo by Christopher Polk/Getty Images)