In a promo video for The Voice on Tuesday, May 19 Christina donned Britney's iconic 'Baby One More Time' costume for the cameo... mockery or joke?
The 34-year-old also mimicked the star's voice and played dumb in the two-minute clip. But Britney wasn't the only victim in Aguilera's comical video. She also impersonated Sia, Lady Gaga, Cher and Miley Cyrus.
Christina sports blonde pigtails, which are embellished with pink ribbons as well as puffy pink hair clips, similar to those the southern star wore in her 1998 video.