• Debbie Allen directed several episodes of the ABC medical drama series "Grey's Anatomy."

Debbie Allen directed several episodes of the ABC medical drama series "Grey's Anatomy." (Photo : Facebook/Grey's Anatomy)

"Grey's Anatomy" season 13 has officially kicked off its first filming day.

On her Twitter account, executive producer Shonda Rhimes shared a photo of Ellen Pompeo with some of the other cast members who were present during the first filming day.

"And #GreysAnatomy13 has officially begun: @msdebbieallen, @EllenPompeo & half the crew just shook it on the dance floor. I love these peeps!" she wrote.

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Rhimes also posted a photo of some of the girls who are working behind the camera for the hit ABC series.

"Next generation #blackgirlmagic in full effect at #GreysAnatomy," the caption read.

Meanwhile, Pompeo also posted a cryptic tweet on her social media account.

"You really haven't lived until you dance the night away to the Whole lemonade album w @shondarhimes @msdebbieallen #Shondalandproblems," she wrote.

On her Instagram account, the "Grey's Anatomy" lead star also uploaded a photo with Allen.

"It's on and poppin! @therealdebbieallen and I are ready to give you a great season 13! Thank you for sticking with us!" Pompeo captioned the snap.

Allen reposted the same photo via her Instagram account and wrote, "Here we go @greysabc Season 13! Love my girl @ellenpompeo #greys #greysanatomy #TGIT."

As of late, it is still unclear why Pompeo and Allen seemingly "danced the night away." It hasn't been confirmed if this will be part of an episode of the series.

"Grey's Anatomy" season 13 will premiere on ABC on Sept. 22 at 8 p.m. ET.