Late pop star Sonny Bono had an unusual nickname for his daughter before she grew up and underwent a sex-swap operation - he referred to little Chastity as "Fred".
Chastity underwent a sex change and legally became a guy called Chaz last year (10), and he has now revealed his father, who died in 1998, christened him with a male name early in life.
He tells U.S. TV host Jay Leno, "He called me Fred... We were in Palm Springs (California) one weekend, and there was this toy store that I used to love to go. We were in there looking, I don't know if it was mugs or key chains - stuff that had people's name on them.... They never had my name, so my dad said, 'Pick a name - what do you think of Fred?' And I apparently really liked it. It stuck for quite some time."
Sonny Bono never lived to see Chastity become Chaz - he died in 1998 at the age of 62. He split from Chaz's mother Cher in 1975.