Sienna Miller has a little streak of hippie in her, we all knew that. But she might be a bit more natural than we had expected!

The 30-year-old actress opened up to Marie Claire about a disastrous hair event that led her to use ketchup on her locks for a year!

Instead of visiting a salon to dye her blonde hair brown, she instead opted to do the job herself using henna instead of dye. “I’ve had some real hair disasters. I once used henna to dye my hair brown for an audition, thinking I was being clever as it’s all natural.”

“Little did I know it was the worst thing I could have done as it coats the follicles so that nothing else can penetrate so I ended up having to put ketchup in it for about a year to get rid of the green tinge.,” she told the magazine.

Who would have thought ketchup could be used as a beauty product?