Even though the big screen came a-calling, Christina didn't turn her back on music. On Feb. 6, 2011, she sang the national anthem during Super Bowl XLV. However, she was left red-faced after fumbling the song's lyrics. "I got so caught up in the moment of the song that I lost my place," she said in a statement. "I can only hope that everyone could feel my love for this country and that the true spirit of its anthem still came through." Still, her powerhouse vocals shined.