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Christina Aguilera, Ariana Grande Team Up on ‘The Voice’ Finale -
Christina Aguilera Impersonates Rihanna, Beyonce, Lady Gaga on ‘Ellen’ -
Watch: Ariana Grande Saves ‘Tidal’ by Impersonating Britney Spears, Shakira, Whitney Houston on ‘SNL’ -
Shakira Leaving ‘The Voice,’ Report Says -
Christina Aguilera Slim at Time 100 Gala