The former S Club 7 star posed for Zoo ahead of the release of her new single 'Fire'.
"I've gone in a different direction and want to make an impact," Barrett said.
"In the video I'm a seductress and deeply saucy. I think it was about time!"
She added: "Having come from a teenybopper group, I've now got the opportunity to be sexier, so I've been able to unleash my inner raunchiness. It's like an explosion!"
Barrett has worked with William Orbit and Beenie Man on her debut solo album.
Watch the Tina Barrett 'Fire' music video below:
On the possibility of an S Club 7 reunion, Barrett said: "We're all talking, so you never know.
"The critics would have a field day, but then they were critical of a Steps comeback and look how well they've done."
Barrett's bandmate Hannah Spearritt recently denied rumours of a planned S Club reunion.
Digital Spy readers have backed the comeback rumours, with 66.2% saying it would be a good idea.
The full feature appears in this week's Zoo magazine, on sale now. Visit the Zoo website for more.