The singer claims she rebelled against her Catholic upbringing and experimented with the same sex after turning 18 reports Female First.

Fergie, 31, says, "I have had lesbian experiences in my past. I won't say how many men I've had sex with - but I am a very sexual person."

Meanwhile, Fergie has accused Nelly Furtado of wearing a wig.
The 32-year-old singer makes the hair-raising claim in her song 'Impacto',
her latest collaboration with rapper Daddy Yankee.
In a reference to Nelly's worldwide hit 'Promiscuous' - which apparently
contained lyrics attacking Fergie - she sings: "I ain't promiscuous, the
realest chick up in this. I'm a pull your wig back!"

This is not the first time Fergie has mocked the Canadian star in her
lyrics. In her hit 'Fergalicious' she also sings that she isn't
"promiscuous".

Fergie - recently enjoyed some good-humored
banter with another Canadian singer, Alanis Morisette.

Alanis recorded a moody, down-beat version of the Black Eyed Peas' hit 'My
Humps' and the video - in which she dresses up as Fergie and shakes her
'hump' before beating up gangster-style men - has become a You Tube
sensation.

Fergie was so impressed with the video she sent Alanis a butt-shaped cake.
Rosa Leung, 52, of Los Angeles bakery Exotic Cakes, who created the rude
calorific treat, said: "A note on the flesh-coloured cake read, 'Alanis,
you're a genius. Love, Fergie.'