Ariana Grande set off in hot pursuit of her sixth No.1 single this week with new song Boyfriend – a collaboration with previously uncharted Pittsburgh duo Social House which topped the first three sales flashes of the week. Despite its start, the track ultimately fell behind the incumbent Shawn Mendes & Camila Cabello collaboration Senorita on paid-for sales and audio streaming, and didn’t have enough of a video stream advantage to take the overall chart leadership.

The No.1 slot thus ...