Katy Perry Knows She'll Have To Tone Down Dress Sense

Katy Perry knows there is an "expiration date" on her outrageous fashion choices.

The 'Firework' singer is renowned for her crazy dress sense - appearing in costumes including a dress shaped like a cake, one styled as a Christmas tree and others adorned with fruits, die and holes, as well as many latex dresses - but accepts she will one day be too old to wear such wild clothes.

She told People.com: "They have an expiration date and that's why I'm wearing them now at 25. I'm such a sucker for a theme, so if I go somewhere like Las Vegas, I'll dress like Vegas! Or if it's Christmas time, I'll dress like Mrs. Claus!

"I've always been girly - even though I was a tomboy. My mother said when I was a kid, I was changing for breakfast, lunch and dinner. I don't make it a big deal, I just do it."

The stunning star - who married British comedian Russell Brand last month - added that while she can't help choosing outrageous outfits, she does reserve most of them for when she's onstage.

She said: "I think sometimes with the themed stuff - I won't be wearing that to get my coffee. Although, maybe my whipped cream bra I'll wear, because I'll help the baristas out. 'I got it! I got it! Hold the cream! No worries.'"