In an exclusive interview, New York-based folk rock band The Pierces speak to online fashion haven ASOS about the tribulations of selecting a perfect performance outfit and their love for the "impressive" way British people dress.

The Pierces - aka sisters Catherine and Allison Pierce - released their fourth album You & I this summer and recently performed at the iTunes Festival in London's Roundhouse alongside Coldplay.

Click on the video below to see the uber-cool sibling duo chat all things fashion and style. See more Asos interviews with artists performing at iTunes festival at the ASOS iTunes Festival online hub here.

Video: The Pierces meet ASOS