Only Kesha would write a song about her own private parts ... and enlist her mom for help.

The glitter goddess explained that her bonus track, 'Gold Trans Am' off of the 'Warrior' deluxe edition, isn't exactly about her wheels. (Sample lyric: "Wham, bam, thank you man / Get inside my f---ing gold Trans Am!")

“It began as a song about my car, which is a gold Trans Am, and it works about 40 percent of the time," she said. “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----," she giggled to The Sun. “But my vagina is in tip top working order. Valeted and souped-up and working 100 percent of the time.”

We just can't.

But was it weird writing that song with the woman whose, er, gold Trans Am popped her out? Not for K-Dollar Sign.

“We write songs about boys and sex together," said the flawless Cannibal Queen simply. “That may not be normal to the average psychiatrist out there but I think it's pretty cool ... don't analyze! That's the problem with so much culture out there," she added.
“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.”

Listen to Kesha, 'Gold Trans Am'