Britain's Prince William, Duke of Cambridge, decorates a gingerbread house as he attends the AGM and Christmas party at the charity 'The Mix', in London on December 19, 2016.
The Duke and Duchess of Cambridge and Prince Harry joined an annual general meeting and Christmas party hosted by youth support service The Mix, to celebrate the volunteers and counsellors who support people through tough times in their lives. The Mix provide online and phone based support to young people aged 13-25 on a range of issues, and is one of the eight charity partners of Heads Together, which aims to change the way we talk about Mental Health, to make it easier to get support when we need it. / AFP / POOL / Alastair Grant        (Photo credit should read ALASTAIR GRANT/AFP/Getty Images)