Pop singer Ke$ha, 25, has come out claiming that she had sex with an anonymous ghost, and it gave her the divine inspiration to write her next hit "Supernatural."

The "Take It Off" singer told Ryan Seacrest on KIIS FM that her new song is "about experiences with the supernatural, but in a sexy way. I had a couple of experiences with the supernatural."

"I don't know his name," she admitted. "He was a ghost! I'm very open to it."

Her upcoming album, Warrior, comes out on Dec. 4. The singer also told Seacrest "There are so many weird topics on this record, from having sexy time with a ghost to getting hypnotized and going into past lives.I just really wanted the theme of this record to be the magic of life."

Ke$ha revealed Warrior will include appearances from Iggy Pop, Wayne Coyne, and Patrick Carney. 

According to Entertainment Weekly, the singer also said that the album is "really positive, really raw, really vulnerable."

Ke$ha's debut album, Animal, was released in 2010. Some appreciated her carefree, fun music about partying and drinking her bottle of Jack. However, some critics took a dislike to it.

The album's lead single, "Tik Tok", was released in 2009 and was a worldwide hit. It reached number one on the Billboard Hot 100 and stayed at the top for nine consecutive weeks. The song also sold 12.8 million digital copies worldwide in 2010, making it the best selling single of the year. Her other singles from the album, "Blah Blah Blah," "Your Love Is My Drug" and "Take It Off," also did extremely well in sales.  

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