The day was August 28, 2003. The place was Radio City Music Hall. From the top of a cake emerged a vision of beauty who radiated as if sent from above. She looked like unto an angel, but neigh, it was not an angel, it was her majesty, Britney Spears, Princess of Pop. She sang the hymn “Like A Virgin.” Frank Micelotta / Getty And she posed and sighed and cooed and generally looked flaw free and iconic. Scott Gries / Getty In the audience, a fan clapped to the beat and looked on in anticipation of what was to come. And, lo, from behind the cake strode another figure. Though she shown not as brightly, her voice shook all those who heard it. And she lifted her veil, and lo, it was Christina “Xtina” Aguilera. And everyone was all like But then from the heavens cried with the sound of a million church bells, heralding the arrival of the godmother.