WPP is Holding Company of the Decade after scooping annual title for seven straight years.
The Tokyo-based agency has won Grand Prix, Titanium and Lions in many other categories over the past decade.
The journey of Publicis chairman & CEO Arthur Sadoun and his predecessor Maurice Lévy to an empty Cannes features in a short mock film to promote the Groupe's Cannes-Do awards.
The Kiwi creative agency has been awarded a grand total of 99 Lions over the past 10 years.
"It's become clear that creative matters more than ever right now."
2020 will be first year since 1953 not to feature international Festival of Creativity or its predecessors.
Top news, insights and analysis every weekday
Sign up for Campaign Bulletins