Horler has spent the last 19 years at Dentsu Aegis Network – most recently as CEO of Dentsu Aegis US.

With revenues of approximately US$3 billion and almost 17,000 employees, the UK is WPP’s second-largest market worldwide.

Nick Theakstone has been appointed to the new role of global chief investment officer.

Based in the Wavemaker Paris office, Hernandez will lead the agency’s relationship with the global L’Oréal clients based in France.

The former Sun and Mail Online columnist will be joining the likes of English Defence League founder and ex-leader Tommy Robinson, and will be writing a regular column at her new site HopkinsWorld.

The broadcaster hopes to eventually offer a full ad sales service that will rival global media companies.

The ASA has banned an advert from online dating service eHarmony which claims it can match people based on scientific evidence.

According to Axios, the music streaming service – which is currently being sued for $1.6 billion (£1.18 billion) in unpaid royalties – confidentially filed IPO documents at the end of December.

The agreement will allow the music company to license its recorded music and publishing catalogs for video and other social experiences across Facebook, Instagram and Oculus.

Nielsen analysis reveals the top 10 most effective TV ads of 2017.