This week on _Peak Time_ we'll be taking a look at the bond between fashion and music, examining the trends and collaborations that have long-defined this eternal love affair. Kicking off the week, Vivian welcomes _Vogue_ staffer Rachel Hahn to discuss key moments in fashion and the music that soundtracked them. She comes armed with a selection of tracks culled from the runways and ad campaigns, ranging from the dreamy ambient to hard-hitting club beats.