The 1Xtra Chart Show With Ronnie Herel will air every Saturday, from 1pm - 4pm, counting down the 40 biggest selling black music tracks from independent and specialist retailers, as well as digital sales from online retailers across the UK. Only tracks released within a three-month time frame will be eligible.

The new chart will incorporate all music of black origin, including genres such as rap, hip hop, R n B, garage and dancehall.

Mark Ronson's track Valerie, with featured ...