The `We Found Love` singer is renowned for having crazy, ever-changing hairstyles and colours and making outrageous music videos, but has decided to strip things back for her new album `Talk That Talk` to focus on her singing.
In an interview on Ryan Seacrest`s KIIS FM radio show she said: "I kind of just wanted to scale back, instead of having a look.
"I didn`t want to make it such a big deal, like what hair color. I wanted to go back to something simple, something flexible; something a little more natural. It`s more about the music.
"I don`t want to become a gimmick, ever."
Speaking about her hair, she jokingly added: "Well, I ran out of colours so I decided to go back to my natural colour."
The 23-year-old star also said she thinks her latest single, `You Da One`, is "kind of dirty".
She added: "This is one of those records, it becomes very addictive. To me, it`s very infectious: the more you listen to it, the more you want to listen to it. It had a reggae vibe, but it`s a sweet little love letter. I love the record. It`s kind of dirty, I love it." `Talk That Talk` is released on November 18.