Bono from U2 mentioned about Christina when he has done an interview with Times Online.
He didn’t mean sports heroes, as he then compared his bandmates to western Pennsylvania artists and entertainers, saying the Edge, is like “the great Andy Warhol, who changed the game,” while the stylish Clayton “is the Perry Como of U2,” and actor Mullen “is the Charles Bronson of U2.” “I will be the Christina Aguilera of U2,” Bono said. “She can sing,” he said with respect. I’m in touch with my inner chick.”
Source: Times Online