• Ellen Pompeo

Ellen Pompeo (Photo : ABC)

"Grey's Anatomy" season 13 recently wrapped up filming for its first episode.

Just recently, cast member and director Debbie Allen posted a tweet after completing directing episode 1 "Undo."

"@EllenPompeo and I are gonna start plotting our dance video for y'all! Wrapping Ep. 1 today! #GreysAnatomy #BTS," Allen wrote alongside a photo of a clicker.

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Allen also shared a photo of the logo for Grey Sloan Memorial Hospital, the make-believe hospital featured in the hit ABC series.

"Almost done shooting @GreysABC Ep. 1! #GreysAnatomy #setlife!" she captioned the snap.

Meanwhile, "Grey's Anatomy" cast member Caterina Scorsone previously told TV Line that she won't be part of majority of the scenes from season 13, episode 1. This is the very reason why the actress tweeted that she's not on set during the first filming day.

However, the actress was recently photographed with her co-star Martin Henderson. This suggests that the cast of "Grey's Anatomy" are already filming for their second episode.

"Martin Henderson & Caterina Scorsone working together this Thursday," the photo caption read. The actress retweeted the snap and wrote, "Commonwealth-ers in Shondaland!"

In other news, Scorsone's real-life pregnancy won't be written in "Grey's Anatomy" season 13. The actress explained, "We are picking up right where we left off, which is hilarious, because I was in a somewhat different geometric state. That cake was fantastic!" she joked.

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