Click below to watch the PSA.

GWYNETH PALTROW is giving a 'Gift' to UNICEF UK's Born Free from HIV Campaign -- her voice on a new PSA.

The short film PSA, 'The Gift,' which premiered today on the children's charity's web site, stars Gwyneth in a dramatization of a poem by SIMON ARMITAGE. The Born Free from HIV Campaign aims to prevent mother-to-child transmission of the virus that causes AIDS.

To watch the PSA and learn more about the campaign, visit UNICEF UK's web site.