Interviewing a fashion icon can be nerve-racking for anyone — even Katy Perry!

The quirky “Waking Up In Vegas” singer chatted with legendary Chanel designer Karl Lagerfeld backstage during Paris Fashion Week his month. The songstress and the designer discussed Karl’s new Lagerfeld collection of mirrored mini dresses, music, and competition in a good-natured chat for Elle.com — Katy even requested a look right from the runway for an upcoming awards show!