Topping the radio airplay chart for the second week in a row, and the third time in all, Calvin Harris & Dua Lipa’s One Kiss does so more or less by default: it has attracted a larger audience than its latest frame tally of 57.08m from 6,615 plays (0.92% down week-on-week) in eleven of its previous 14 weeks.

It is the smallest audience a No.1 has attracted for over a year, and it is unlikely to survive another week at ...