Christina Aguilera opened up to Ellen DeGeneres about her "Star-Spangled Banner" slipup at the Super Bowl. In the interview, set to air today, Christina explained, "I had been singing that song my entire life. I was the youngest anthem singer in my hometown of Pittsburgh, PA . . . I think had a moment where I was at the Super Bowl at 30 years old. I took in the moment a little bit too much."