As Karen Walker would say, Honey, what is this?

The quartet played Will, Grace, Jack, and Karen in the beloved sitcom.

Messing tweeted a photo of their reunion with the caption, Only smiling because of where Erics hand is!

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Credit: Debra Messing/Twitter

According to a tweet from McCormack, the reunion occurred last Wednesday.

See the photos below.

Will & Graceran for eight seasons from 1998 to 2006.

McCormack and Messing came back together a few years later in 2010 for EWs Reunions issue.

Obviously, were very comfortable with each other, Messingsaid at the time.

Watch a behind-the-scenes video from the issue below.