The singer chats with PEOPLE about her signature holiday style and what her skincare routine is looking like these days ...

Christina Aguilera has once again proven she's an enduring pop icon with a flair for fashion. The Grammy-winning singer made ...

Redman reveals that Christina Aguilera was one of his favorite collaborations and says he couldn’t believe he was paid over ...

The "What a Girl Wants" singer attended the grand opening of H&M’s new flagship store in Times Square on Nov. 21, ...

Clad in head-to-toe H&M, Aguilera made the light-reflecting bottoms the focal point of her outfit by finishing off with a black velvet coat, a simple tee and thigh-high leather boots. Her jewelry — ...

"The Voice" alum Christina Aguilera gave fans and a fellow entertainer a huge surprise that generated quite the frenzy.

Sabrina Carpenter brought out Christina Aguilera for a surprise performance during the first Los Angeles show of the final ...

Aguilera sang her hits “What a Girl Wants” and “Ain’t No Other Man” as she joined Carpenter onstage at Crypto.com Arena.

Christina Aguilera made a surprise appearance at Sabrina Carpenter's concert at the Crypto.com Arena in Los Angeles on Friday ...

Hip-hop legend Redman disclosed that his collaboration on Christina Aguilera's hit "Dirrty" generated his largest publishing ...

Fresh from being nominated for half a dozen Grammy Awards, the 25-year-old pop star brought her tour behind this year's ...

Sabrina Carpenter brought sparkle and sarcasm — plus Christina Aguilera — to Los Angeles on her 'Short n' Sweet' tour.