Christina Aguilera Brings the Genie — and Melissa McCarthy — Out of the Bottle For Carpool Karaoke

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James Corden's Carpool Karaoke Primetime Special finally returned to TV on Monday night with none other than Christina Aguilera. In addition to performing some of her biggest hits, including "Fighter" and "Beautiful," Christina brought out Melissa McCarthy for a fun-filled "Dirrty" duet. She also took a walk down memory lane, reflecting on her Mickey Mouse Club days and admitting that she thought Ryan Gosling probably had a crush on Britney Spears. Prepare for nostalgia overload, and watch the video above now.