Her polka dress, from rockabilly emporium Wheels & Doll Baby, gave a 50s pin-up flavour to the ensemble. Just one hitch, Katy - you do realise that your fans can't see you on the radio?
What do you think about Katy's 'off-duty' style? Leave a comment below and let us know!
Suggested For You
SUBSCRIBE AND FOLLOW
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements.Learn more