Sabrina Carpenter pretended to arrest 'Saturday Night Live' cast member Marcello Hernández during her concert in Los Angeles.

Kia Forum in Inglewood, California, Sabrina Carpenter brought out a very special guest straight from Miami for her tour ...

Pop icon Christina Aguilera delighted fans of Sabrina Carpenter with an unexpected appearance during the “Espresso” singer’s ...

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

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

The heart wants what it wants and for Sabrina Carpenter fans that’s more collaborations with Christina Aguilera. Back in September, the pop darlings joined forces for The 25th Anniversary Of Christina ...

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

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

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

Aguilera, 43, strutted into the venue, wearing a black bustier and over-the-knee silver boots while performing a vocal riff ...

Sabrina Carpenter surprised her fans with an appearance from Christina Aguilera on her L.A. tour stop and they sang two songs ...

"I'm freaking out," Carpenter admitted at the time as she sat down with Aguilera on the stage, where she shared memories of ...