The Chainsmokers' grip on the Number 1 spot appears to be loosening up, but the duo have managed to hold on for a fourth week at the top of the Official Singles Chart.

Closer, their collaboration with Halsey, claims its fourth week at Number 1, with combined chart sales of 82,500. Closer was also the most streamed track of the last seven days. The band's other single in the Top 40 Don't Let Me Down exits the Top 10 today to 11 after eleven weeks inside.

James Arthur's Say You Won't Let Go vaults from Number 25 to Number 2 and ends the week with a combined chart total of 60,000. The track was the most downloaded of the week however, with just under 40,000 snapping up the lead single from James's upcoming sophomore album Back From The Edge.

Meanwhile, rounding off this week’s Top 5 is Calvin Harris's new single My Way, which becomes his 21st Top 10 single (5).

Ariana Grande and Nicki Minaj's Side To Side becomes Ariana's third highest charting single behind her two Number 1s Problem and Bang Bang - up two spots to Number 6. Ellie Goulding's Still Falling For You also is on the rise, jumping nine places to reach a new peak of Number 12.

Emeli Sande's comeback track Hurts debuts at Number 22, Digital Farm Animals, Cash Cash and Nelly's Millionaire flies from 38 to 25, and Zara Larsson's Ain't My Fault bounces six places higher to Number 26 following her BBC Radio 1 Live Lounge slot earlier this week.

Matoma and Becky Hill's False Alarm reaches new heights at Number 33 - up seven places - and finally, US actress and singer Hailee Steinfeld make her Top 40 debut with her Grey and Zedd-assisted track Starving (40).

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Watch BTS footage from James Arthur's new single below: