Pop sensation Ke$ha has revealed that her song 'Gold Trans Am' was originally meant to be about her car, but turned into a track about her lady parts, which she co-wrote with her mother.

Speaking to Q magazine about the song, which features on the deluxe version of her album 'Warrior', she explained that it started out as an innocent hit, but soon turned into a metaphor about her vagina: "It began as a song about my car, which is a gold Trans Am, and it works about 40 per cent of the time."

"I don't have another car because I love that one so much. But then like all great pop it became a metaphor for something else - my p***y." Ke$ha added: "My vagina is in tip top working order. Valeted and souped-up and working 100 per cent of the time."

Referring to the fact that she penned it with her mother, she quipped: "That may not be normal to the average psychiatrist out there but I think it's pretty cool…don't analyse. That's the problem with so much culture out there. People are so trapped into trying to do the right thing. As long as you are not hurting anyone I think you should feel free to indulge your fantasies."

Check out the track in question here: