Taylor Swift doesn't think she looks good without red lipstick.

The 24-year-old country crooner is known for her affinity for the colour red and is rarely seen without rouge lips, and she explains this is because she feels she looks ''worse'' without her signature shade.

She told People.com: ''I guess I just think my face looks worse without it. That's pretty much the only rationale behind it.''

The 'We Are Never Ever Getting Back Together' hitmaker admits she does try to vary her make-up, but can't seem to stray away from her famous red lips.

She added: ''I'll go through different phases with makeup and always try new things. Except I never really get too far from red lipstick, do I?''

Despite her love of red lipstick, the songstress insists she doesn't have a make-up bag full of the cosmetics.

Taylor said: ''I don't have an excessive amount! I just find one I like and use it. Right now [I'm using] Dragon Girl by NARS.''

The Grammy Award-winning star also revealed she doesn't swap clothes with her A-list pals including Selena Gomez, Hailee Steinfeld and Lorde.

She confessed: ''We don't usually have the same style. If they see me wearing something, they know it's because that's something that represents me and they'll wear something very different ... It doesn't really affect the conversation, what we're wearing.''