FILE - In this Feb. 3, 2013 file photo, Beyonce performs during the Pepsi Super Bowl XLVII Halftime Show football game between the San Francisco 49ers and the Baltimore Ravens, in New Orleans. Beyonce stopped short of apologizing for using a sample of audio from the Space Shuttle Challenger explosion in a statement released on Tuesday, Dec. 31, 2013, to ABC. The pop superstar explained the use of the short snippet at the beginning of her song "XO" from her new self-titled album after it brought criticism from the wife of the commander at the helm of the Challenger when it exploded in 1986 and others. (AP Photo/Mark Humphrey, File)