Three adverts for The Sunday Times Rich List have won a gold Cannes Lion in the Outdoor Media Category.

Grey London, the agency that created the 'Fat Cats' campaign, picked up the award for their designs of Elton John, Simon Cowell and Richard Branson posing as cats to promote last year’s list.

Grey London also won a Bronze Cyber Lion for five films they produced for the Unquiet Film series, which showcases the stories behind the stories that appear in The Times and The Sunday Times.

News UK's Chief Creative Officer Nick Stringer said:

These are the most coveted awards in advertising and communications. To have our work recognised on a world stage makes me very proud of what we have achieved in Marketing over the past few years. Congratulations to all those involved in the wonderful Fat Cats Sunday Times work and the excellent Unquiet Film Series.

The festival is the most prestigious international creative communications awards, with more than 34,000 entries showcased from all over the world.