The seventh No.1 single in a row to rack up three weeks at the summit - an unprecedented run - Little Mix's Shout Out To My Ex does so with ease, although the track is now in decline, with sales dipping 29.31% to 79,039. Paid-for sales slide 39.28% to 37,318, while streaming sales are also off sharply, falling 17.15% to 41,721.

With fellow X Factor graduate James Arthur - who Little Mix dethroned last month - debuting atop the album ...