Kerr's title is unconfirmed but she is expected to act as the managing director of Team News, which brings together resource from the WPP agencies Grey, M/SIX, OgilvyOne and Ogilvy Change.
She will report to WPP's director of strategy and the chief executive of WPP Digtal, Mark Read. Team News will act as an integrated agency with a single P&L and be part-located at News International's offices in Wapping.
Before Team News, Kerr, who has been out of the ad industry for the past three years, worked at Abbott Mead Vickers BBDO as its marketing director and sat on its management board for five years until 2009. Before that, she worked at TBWA\London as its managing partner for 11 years.
The WPP agencies were appointed last month to handle the consolidated £28 million News International account.