Adele's comeback track 'Hello' has topped the US singles chart again.

The singer unleashed the tune in late October as the first cut from her upcoming third album '25'.

It became the first song to sell more than one million downloads in a week in the US - and Adele has continued her prolific form.

In its second week on sale in the US, the single shifted a total of 635,000 units.

This means that it now also has the third-best sales week for downloads in the country - sitting only 1,000 copies behind second placed 'Right Round' by Flo Rida.

'Hello' will feature on Adele's upcoming new album '25', which is released on November 20.

At No.2 on the Billboard chart is Drake's 'Hotline Bling', which rises one place.

The Weeknd's 'The Hills' is No.3 while Justin Bieber's 'Sorry' drops one notch to No.4.

Ariana Grande's 'Focus' debuts at No.7.

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Watch the video for Adele's 'Hello' below: