Sak Noel’s hugely-successful continental hit Loca People is facing a close battle to top this coming weekend’s UK singles chart with the Goo Goo Dolls classic Iris after the 1998 song was covered on The X Factor.The 3 Beat/All Around The World single Loca People, whose pre-release demand was demonstrated by a cover version entering the chart last Sunday, is presently around 3,000 sales ahead of the Warner Bros issued Iris, according to the Official Charts Company.Iris has been a steady seller since its release 13 years ago, having clocked up more than 300,000 UK sales, although it has never ch