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Minaj was kooky fun as she performed her "Super Bass," and her dancers were cartoonish and colorful as they shimmied in their cotton-candy-colored wigs. If not the kind of commanding vocal performance Minaj is capable of (see Kanye West's "Monster"), it was one of the few moments of the Billboard Music Awards that was enjoyably weird.
Then along came Britney Spears for part of "Till the World Ends," and the charismatic Minaj did nothing but get in line behind the blond Barbie doll, who walked back and forth to once again show off her lip sync skills. Spears didn't look like a pop star; she looked like a prop.