Ke$ha's Big Lie: I Don't Know My Father

keha and her father bob chamberlain

Is it possible to rewrite your family history?  If you're pop star Ke$ha it is.

Ke$ha, born Kesha Rose Sebert in Los Angeles, has publicly maintained that she doesn't know who her father is.

Enter one Bob Chamberlain.

Chamberlain, a musician and engineer, says that not only does the singer know who he is, but she also had a relationship with him.  "I was in her life from the time she was born until she was 19 years old,"  Bob tells Star magazine. "The contact ended, and I have no idea why."

It has been widely reported that Ke$ha's mother, Pebe, struggled finanically and relied on welfare to support herself, Ke$ha and her older brother, Lagan.  The family moved to Nashville in 1991 where Ke$ha's younger brother Louis was born shortly after.

As far as why Ke$ha has written her father out of her life, Chamberlain says he has no idea.  "Maybe someone around her thought it would be better to perpetuate those myths."