Kelly Osbourne's purple hair takes eight hours to dye.

Kelly Osbourne

Kelly Osbourne

The 31-year-old fashion designer, who has switched up her hair colour more times than she can remember, has admitted it takes almost all day to get her perfect lilac locks.

She explained to Yahoo Style: "We do it [dye it] at my house. It is like a bit of a chemistry project.

"My kitchen gets turned out with all of these mixing bowls with these different lavenders to get the colour we want."

As well as her hair, the outspoken presenter also likes to speak volumes with her label Stories... By Kelly Osbourne after developing a passion for fashion at just 12 years old.

She said: "I think I was 12 the first time Vivienne Westwood pinned a dress on me. How many people can say that?

"I'm not trying to reinvent the wheel and become the next Karl Lagerfeld or Alexander McQueen.

"That's not what I'm trying to do. I'm trying to make affordable clothing for all women, sizes 0 to 24."

And, although she's recently turned 31, the British babe believes her career is going from strength-to-strength as she gets older because people are starting to "respect" her.

She added: "People are starting to respect me. Because respect only comes with age in this industry.

"You also have to earn people's respect and seeing that I'm accomplishing that makes me very happy.

"It makes me realise how much my life has changed and how lucky I am that it wasn't just 15 minutes."