The 'Young' singer was arrested and bailed at the start of June on suspicion of supplying drugs after a Sunday newspaper undercover reporter accused her of introducing him to an alleged drug dealer.
At the weekend Tulisa donned a skimpy dress for a night of partying in Essex.
The star uploaded several pictures from her night out to Instagram, including one of her pulling a sultry pose and looking over her shoulder at the camera. She added the caption: "Getting ready 2 rumble."
Other pictures show the former X Factor judge and her friends posing together at the start of the night and then cuddling up in the club.
Tulisa's outing marked her first big night out since her arrest.
The singer has been keeping a relatively low profile in recent weeks, and only recently resurfaced on social media, posting pictures of herself and band mates N-Dubz, and a photo of herself working out.
Meanwhile, Tulisa's former X Factor colleagues have begun their quest to find another star, with auditions for the tenth series kicking off last month.
Sharon Osbourne has filled the place on the judging panel left vacant by Tulisa, while Nicole Scherzinger, Gary Barlow and Louis Walsh have all returned.