Retired footballer David Beckham and Chinese basketball megastar Yao Ming will film two announcements with the Duke of Cambridge as part of a campaign against illegal wildlife products.
The videos aim to reduce deman for rhino horn and ivory and will be aired globally.
More top news
Over the next 24 hours we are going to see snow and ice across many parts, although it is looking calmer from Sunday onwards.
A young grey seal found in a farmer's field on Monday is making progress say RSPCA staff. He's thought to have a head injury.
The UK economy, boosted by the inclusion of the sex and drugs industry in the calculations, is now the world's fifth largest, but only just.