A Christmas ad from German Supermarket Edeka that showed an elderly man fake his death to get his family to come home for the festive season has overtaken John Lewis as the most shared Christmas ad of 2015. The TV ad has attracted almost 2.4m shares since it was launched last week, according to Unruly, putting it well ahead of John Lewis's ManOnTheMoon which has managed a total of 1.3m shares. Sainsbury's effort is currently in third place with 917,907 shares.

The sportswear and equipment manufacturing giant kicked off a review in September with a brief to help existing customers and handle some digital activity. Campaign understands that Havas Helia has been appointed after a competitive pitch against M&C Saatchi's Lida, CHI & Partners/Rapier and Proximity. Formal pitches took place in mid-November at Adidas' headquarters in Herzogenaurach, Germany. The process was handled by Roth Observatory.

The deal gives the breakfast and snacks giant the right to have Team GB marketing across its brands, including Corn Flakes, Special K, Square and Pringles, from now until the end of 2016. There are plans to include current and former athletes to support marketing campaigns in the coming months. Global advertising for the majority of Kellogg's brands is handled by Leo Burnett, since the company consolidated the accounts into the Publicis Groupe-owned network in 2009.

TfL will also run a joint advertising campaign with Kayak to promote free travel on 31 December. The scheme has been running since 2001. The ads will feature the company's sheep logo. Last year TfL failed to find a sponsor to replace Diageo, which had aligned itself with free travel on New Year's Eve since 2011 as part of its responsible drinking drive.

From the 1st of January Krichefski will be responsible for running the UK's biggest media agency, including hiring and keeping senior executives, spearheading new business and leading its major client relationships. In her new role, Karen Blackett will work with Krichefski to develop the UK business as well as look to ensure the agency is making the most of the wider specialist services on offer from within the WPP group.

The Publicis Groupe-owned media agency expects growth of 9.7% -- the fastest rate since 1998 when ad growth was 9.8%. Zenith is even more bullish than WPP's Group M, which last week boosted its UK forecast to 7% growth next year. Jonathan Barnard, the head of forecasting at Zenith, said: "It is pretty stellar -- the fastest growth rate of any mature market."

ZenithOptimedia -- which compiled the forecast -- said motors, finance, airlines and fast-moving consumer goods were the main categories investing in TV, which is up 8% for the year to date and is expected to increase by a similar amount in December. Jonathan Barnard, the head of forecasting at ZenithOptimedia, said: "December TV spending is particularly heavy this year because categories targeting young affluent men crowded out other categories, such as general retailers, during the Rugby World Cup."

Dentsu Aegis Network won the account after pitching against the incumbent Starcom MediaVest Group, which had held the account since 2010. It is understood that no other agencies had pitched for the business. The appointment ends a 13-year relationship that began in 2002 when Starcom Motive won Honda's media business from Mediahead. The Publicis Groupe-owned media network then picked up the consolidated EUR150 European media account in 2010.

Unilever has been working closely with startups and agencies to bridge the gap between the physical and digital worlds but says brands must be careful not to end up using technology for the sake of it and in the process "irritating consumers." Speaking at creativebrief's BITE event in London last week, Unilever's global media director Ben Johnson said FMCG brands must ensure they are adding value to the consumer experience and not commoditising their product.

Jared Grusd, the 40-year-old new chief executive poached from Spotify four months ago, may need some of the stamina of his ironman triathlon training to maintain HuffPo's reputation as a pack leader. At his first sit-down interview since taking charge, Grusd explains that HuffPo's future will be global and played out in a new, largely mobile era he has dubbed "post-social."Key to this is the changing role of social media sites like Facebook from places where people share news, to ones where they consume it.