Gwen Stefani wears red lipstick because her husband likes it.
The No Doubt singer - who has had huge success in the fashion world with her L.A.M.B. clothing label - revealed her trademark red lips are not a fashion statement but simply a favourite of Gavin Rossdale and also admitted she takes inspiration from "hot" girls in the street.
She said: "I don't have a favourite brand, I switch it up all the time. I change colours too, I was wearing pink lipstick the last day but I wear red for my husband because he likes the red.
"I get inspiration from everywhere, it could be anything, it could be some hot girl walking along the street and I go 'I wanna be like her'."
Gwen revealed she has always been interested in fashion but doesn't put too much time into thinking about her style.
She explained to elleuk.com: "My style is always evolving, it always has ever since I was a little girl. It's just something that's really organic and natural. I don't put a lot of thought into it in the sense of 'what am I going to do next?' it just kind of happens.
"I have loved playing dress up since a very young age. I'm a typical girl in that I love getting dressed up to go out but when I get there I take a look around and then want to go home. I'm all about getting ready."