Fergie dyed her hair brown to help her "evolve" into an adult.

The Black Eyed Peas singer has revealed she swapped her blonde tresses for glossy dark locks earlier this year because she was married and wanted to look "more mature."

Fergie has revealed she is bisexual. The Black Eyed Peas beauty, who is married to "Transformers" actor Josh Duhamel, admits she has enjoyed several lesbian trysts - but she could never fully commit to a woman.

She is quoted by Britain's The Sun newspaper as saying: "Put it this way, I've experimented definitely, but I have never had a steady girlfriend."

Fergie owns over 500 pairs of shoes. The Black Eyed Peas star - who has just launched her own footwear collection called "Fergie" - is so obsessed with buying new pairs of pumps, heels and sneakers, she has to keep building new storage space.

She said: "I'm a girl, and I love accessories. It's one of the reasons I have huge closets, and we keep making room in the house for more closets. I don't like to throw anything away."

Fergie has gained 13lbs for her role in musical movie "Nine." The Black Eyed Peas singer - who stars alongside Nicole Kidman in the upcoming film - indulged in calorific treats to put on weight for her role as prostitute Saraghina.

She said: "I've actually gained 10 lbs! No, really - for the film, 'Nine.' Actually, 13 to be exact. I ate everything! Fish and chips. Everything fried - things I don't normally eat."