Fernando Kahane, Senior Marketing Director, PepsiCo Walkers, and Tim McEntaggart, Director of Brand and Innovation Insights, PepsiCo, talk Mariah Carey, crisps and creativity condoms — and give practical tips on how you should be using insights to move from testing to learning, in order to make your advertising truly legendary.

Pressed for time? Check out the key takeaways at the 34 minute mark.