The former X Factor judge was snapped arriving at a London hairdressers on Wednesday (26 March), rocking a navy tracksuit and with her dark locks tied back in a tight bun.
But when she emerged from the salon, her hair was voluminous, bouncy and perfectly curled, ready for her big night out.
Tulisa showed off her hair via Instagram pictures posted later that evening, when she joined pals at London's O2 Arena to watch Drake in action, swapping her comfy trackie for a slinky little dress.
The N-Dubz singer has been keeping a relatively low profile this year, although her cousin Dappy did get fans excited back in February when he hinted N-Dubz were close to reforming.
The band – which features Tulisa, Dappy and Fazer – took a break in 2011 to focus on solo projects, but it seems there could be talks happening about a reunion.
Dappy told The Mirror: I will do a tour again with N-Dubz. I want it to happen soon - this year.
"I've had three number ones by myself and I want another two - that will make it five. That's my aim to get five under my belt. Tulisa and Fazer are all ready for it, too. We'll all win BRITs."
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Watch N-Dubz's video for 'I Need You' below: