The song has been downloaded around 70,000 times since it was made available as a digital single on Sunday (November 30), reports BBC News.
The tune has surpassed the previous record-holder, Estelle‘s ‘American Boy’, which was downloaded 51,857 time in its first week of sales.
As previously reported, Lewis’ cover of ‘Run’ was not initially intended to be released as a single, with the singer’s record label, Sony, then accused of attempting to cash in by tagging it on to a reissue of her 2007 debut album, ‘Spirit’.
‘Run’ reached Number 5 in 2003 when first released by Snow Patrol, and their version has also recently returned to the UK singles chart on downloads alone.
The song is likely to be Number One in the UK singles chart on Sunday (December 7). Check NME.COM at around 7pm (GMT) to find out if Lewis makes the top spot.