At Fortune’s exclusive Fuel Up With Fortune panel in Cannes, a cohort of powerhouse women CMOs discuss how they're reinventing brand storytelling and what it means to build a brand in the digital era. Fortune's Ruth Umoh was joined by Global Chief Client Officer at Monks, Deborah Heslip, Chief Digital Officer at Diageo, Susan Jones, Chief Marketing Officer at Autodesk Dara Treseder, and Chief Digital Officer at E.L.F Beauty Ekta Chopra.