LONDON, ENGLAND - DECEMBER 04:  Johnnie Walker Global Responsible Drinking Ambassador Mika Hakkinen with McLaren Hondas Jenson Button and Fernando Alonso and McLaren Honda Test Driver Stoffel Vandoorne pose for photographs outside Wembley Stadium on December 4, 2015 in London, England. The F1 stars are in London for the launch of the Johnnie Walker® festive responsible drinking initiative Join The Pact, to encourage people to make the pledge to never drink and drive. As part of the campaign, the Scotch whisky brand has pledged to give away 450,000 kilometres of safe rides home around the world this festive season.  In addition, this year and starting in London, some people will have the opportunity to go one step further and experience the joy of festive giving by nominating a friend for a safe ride home. Join The Pact by visiting or by tweeting #JoinThePact to @JohnnieWalker_.  (Photo by Christopher Lee/Getty Images for Johnnie Walker)