Kesha has had sex with a ghost.

The 'We R Who We R' hitmaker has revealed that one of her new tracks 'Supernatural' was inspired by an erotic paranormal experience.

Speaking to Ryan Seacrest on his KIIS FM radio show, she said: ''I also have this song called 'Supernatural'. It's about experiences with the supernatural ... but in a sexy way ... I had a couple experiences with the supernatural ... I don't know his name! He was a ghost! I'm very open to it.''

Kesha, 25, also revealed her upcoming album 'Warrior' is inspired by a spiritual quest she went on to find a new sound - which included travelling to Africa to feed baby lions.

She explained: ''The theme of this record is magic. I went on a spirit journey by myself. No security guard. No managers. I just went around the world and lived on a boat.

''I was in Africa rehabilitating baby lions. I went diving with great white sharks, and just went on this crazy spirit quest.

''I got hypnotized, and I just really wanted this record to be really positive, really raw, really vulnerable and about the magic of life.''