Plenty of celebrities have teamed up with MasterClass to teach the tricks of their famous trades, with options including everything from a Christina Aguilera-helmed singing class to a Kris Jenner ...

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

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

Christina Aguilera attended the ribbon-cutting ceremony for H&M's renovated Times Square flagship in New York City wearing ...

The "What a Girl Wants" singer attended the grand opening of H&M’s new flagship store in Times Square on Nov. 21 Monica Schipper/Getty; Kayla Oaddams/WireImage Christina Aguilera and Sabrina ...

The "Genie In A Bottle" singer attended the reopening of the H&M store in Times Square, where she expressed her excitement ...

The no-pants trend is still going strong — just ask Christina Aguilera. Last night, the pop star, 43, took the look for a spin, wearing holiday-approved gold hot pants at the ribbon-cutting ...

Like the true pop star that she is, Christina Aguilera never does anything basic. So when it comes to dressing up for the holidays, the 43-year-old is bound to put a sexy spin on the trend ...

Christina Aguilera has once again proven she's an enduring pop icon with a flair for fashion. The Grammy-winning singer made a surprise appearance on November 21 as she attended the ribbon-cutting ...

Christina Aguilera, 43, is redefining holiday style with her signature mix of comfort and sparkle. In an interview with People, the singer shares how she curates her wardrobe to match the festive ...

Christina Aguilera and Sabrina Carpenter are two peas in a pod! Days after sharing the stage at Carpenter’s concert, Aguilera is opening up to PEOPLE about her admiration for her fellow blonde ...