Utada Hikaru is one of many international artists appearing on Unity, an official compilation for the Athens Olympics. Billed only by her family name, the pop singer teams up with Timbaland and Kiley Dean on the track, “By Your Side”. Sixteen artists from 15 countries participate on the album, including Sting, Avril Lavgine, Moby and Brian Eno. Proceeds from the sale of the album benefit UNICEF’s HIV/AIDS programs in South Africa. Unity goes on sale in Japan on July 7, with a release date of Aug. 10 for the US.