Apple UK's free promo download this week comes from Sony world music artist Angélique Kidjo.

The single - Congoleo - is described as: "Ecstatic music", and the track is taken from her latest album, Oyaya (Joy).

Apple explains: "The record overflows with upbeat tunes in a variety of indigenous Caribbean musical styles like salsa, merengue, and ska."

Acompanying notes recommend downloading the track for an, "education in the incendiary calypso rhythms of Trinidad".

The single is available for download to registered UK iTunes users only here.