In the snap, the women were all seen enjoying an elegant meal and drinking water (not alcohol) for de Lesseps' first outing.
"The gang's all here #reunited" she captioned the post, moments before deleting it from her account.
Various fan accounts immediately screen grabbed the image and shared it with their followers after Singer, 61, took it down.
As Radar readers know, Luann de Lesseps, 52, was arrested one month ago, after going on a drunken rampage inside a Palm Beach resort.
While she blamed the meltdown on her rocky marriage to Tom D'Agostino, she later apologized for the embarrassing incident and assured fans that she would be seeking treatment for her alcohol habit.
In the since-deleted photo posted by Singer, de Lesseps looked happy and healthy.
According to a report, she took her treatment very seriously, and managed a full recovery after just a few days in rehab. Sources stated that the Countess is more than ready to get back to work after her arrest – she is feeling stronger than ever!
Hours after the photo was uploaded, de Lesseps confirmed the rumors by sharing an emotional post on her Twitter. "It’s good to be home. I’m doing great. Spending time with friends and family. Thanking everyone for your continued good wishes and support," she wrote.
What do you think of Luann de Lesseps leaving rehab after her boozy scandal? Sound off in the comments below.
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at firstname.lastname@example.org, or call us at (866) ON-RADAR (667-2327) any time, day or night.