The girls of Fifth Harmony have been hard at work rehearsing for their first ever, headlining tour, which kicks off Friday, Feb. 27, so they have a countdown going on for opening night.

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Camila Cabello, Lauren Jauregui, Normani Kordei Hamilton, Dinah Jane Hansen and Ally Brooke Hernandez began their countdown last Friday, Feb. 20, since it marked exactly one week until The Reflection Tour.

"We're 1 week away," they gushed while sharing a photo of "7 Days #TheReflectionTour" stamped on a window with the sun shining through.

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On Feb. 21, the girls shared another photo for their countdown of a pair of heart-shaped sunglasses with "6 Days #TheReflectionTour" stamped on one of the lenses. They even asked Harmonizers what their "dream setlist" would include.

On Monday it marked four days until The Reflection Tour begins so the girls shared a photo of "4 Days #TheReflectionTour" stamped on an airplane window.

Hansen asked her 1.01 million Twitter followers on Tuesday, "[W]ho's coming?" The "tour is literally around the corner" after all as she put it.

Wednesday the 5H members reached and declared the two-day mark until the tour begins.

The photo for this countdown marker, included an automobile's window as it cruises down a road with "2 Days #TheReflectionTour" stamped on the window.

The girls admitted they're "excited and nervous" about the tour kicking off so soon.

 The tour begins in San Francisco, Calif. Friday at The Regency Ballroom.

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