If ever there was an absolutely amazing way to give the middle finger to her ex-boyfriend and the world in general, it would be Selena Gomez's way of leaving rehab early... to not only promote a new film, but to celebrate with a drink!

The Daily Mail has snapped some photos of the "Come & Get It" singer leaving a London nightclub, wearing a tight purple dress, black stockings, and purple shoes. The restaurant, Sketch, is known as a haven for paparazzi and star watchers, so Selena definitely wanted to make a statement!

Gomez was originally scheduled to stay at the Dawn at the Meadows treatment facility in Arizona, but she checked out after only two weeks in the facility. Her representative told the Daily Mail that Selena was in the facility "voluntarily, but NOT for substance abuse. She was burnt out after a relentless year of back-to-back films, concerts, TV, touring and all the promotional work that goes along with it. She needed a break."

And, despite her ex-boyfriend Justin Bieber's claim that she was addicted to booze, pot, and Ambien, her representative dismisses the claim as nonsense. "She's not that girl. Does she party and have the occasional joint? Yes. Does she drink when she goes out? Yes. But she's not struggling with drug addiction or alcoholism. I've never seen her out of control. There's no needle dangling out of her arm," said the source to the same site.

But according to Perez Hilton, there are many people who are concerned that Selena may have left rehab too early, "exhaustion" or not, simply because it's impossible to recover from that level of tiredness in just a few days. "She's still very fragile and not coping with her problems at all. She's jabbering to herself, and everyone is worried she's about to pull a Britney [Spears] -- she's a very troubled young girl, and if she doesn't get it together, the psych ward could be next," reports Perez Hilton.