The 1Xtra Chart is a weekly record chart based on sales of singles in the United Kingdom. It lists the 40 biggest-selling urban music songs released within a three-month time period, and features genres such as hip hop, R&B, dancehall and rap. The chart is compiled by the Official Charts Company (OCC) on behalf of the UK music industry, and each week's new number one is announced on The 1Xtra Chart with Adele Roberts at 1 p.m. on Saturdays on BBC Radio 1Xtra. The show is currently hosted by its eponymous presenter Adele Roberts, who took over from Sarah-Jane Crawford in spring 2012, and was previously hosted by Ronnie Herel until December 2010. The chart is also listed on the official websites of both BBC Radio 1 and the OCC.
The 1Xtra Chart was launched during October 2007. Its first number one was "Valerie" by Mark Ronson featuring Amy Winehouse.