Fifth Harmony Is 'Back on the Rehearsal Grind,' Prepping for First Performance Without Camila Cabello

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Camila Cabello, who?

Fifth Harmony is "back on the rehearsal grind," and they don't care who knows it!

WATCH: Fifth Harmony Announce First Performance Without Camila Cabello

The foursome took to Instagram on Saturday to share a fierce selfie from their first rehearsal as a foursome, following Cabello's exit from the group last month.

"Back on the rehearsal grind. Let's do this. ❤," the girls' Instagram account captioned the photo.

WATCH: Camila Cabello Says People 'Tried to Sexualize' Her While in Fifth Harmony

Fifth Harmony is set to take the stage at the 2017 People's Choice Awards on Jan. 18 for their first official performance sans Cabello.

The group won their first People's Choice Award in 2016 for Favorite Group and received a second nomination in the category this year.

The band announced on Dec. 18 that they were "informed via her representatives" that Cabello would be leaving the group after four and a half years together. The next day, Cabello responded saying the group's statement was "simply not true."

WATCH: Everything We Know After Camila Cabello Quit Fifth Harmony

While the girls engaged in a back and forth over the next couple of days, ET confirmed that the foursome resigned with Epic Records and Syco last week and are expected to release a new album later this year. 

See more on the new Fifth Harmony in the video below. 

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