Rihanna has been unveiled as the brand ambassador of coconut water brand Vita Coco, as it prepares to launch a new UK campaign.

The brand, which launched in the US in 2004 followed by the UK in 2010, claims it's the biggest selling coconut water drink in the country, and the new Viva Vita initiative aims to reach new audiences with billboards, tube posters and digital activity. The campaign, shot by Terry Richardson, launches later this month.