43 Celebrities Who Are Surprisingly Rude In Real Life

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Christina Aguilera

Nicki Swift

Here’s another The Voice coach who needs to go to charm school. Christina Aguilera might be a Grammy Award-winning vocal powerhouse, but she hasn’t always been nice to fans, contestants, and even other celebrities. Once, the pop icon berated a contestant for not paying close attention to her not-so-positive critiques. Another time, she crossed the line when she repeatedly asked a 20-year-old male country crooner to take off his pants. The singer also dislikes shopping among fans and always makes sure a store has closed for the day so she can shop alone inside. And once she’s done and leaves the store, don’t expect the stuck-up singer to sign autographs as well.

Aguilera’s rude behavior doesn’t end with the fans either. Actress Valerie Bertinelli once approached Aguilera at a Van Halen concert and told the pop star, “Oh my God, I think you’re a beautiful singer,” but Aguilera just gave her the cold shoulder and answered, “Yeah, whatever.” The self-absorbed performer took her rudeness to an extreme level of disrespect when she extended her hand to Mary J. Blige, expecting the R&B legend to kiss it. Unbelievable.