Little Mix are still sitting pretty at the top of the UK iTunes chart.

The girl group released their new track 'Shout Out To My Ex' on Sunday (October 16) after performing it on the X Factor.

By Tuesday morning (October 18), the song was still placed at No.1 on the UK iTunes chart.

It is expected that the track will make a big impact on the main UK singles chart, which will be unveiled on Friday (October 21).

The single is the first song to be taken from Little Mix's upcoming fourth album 'Glory Days'.

The record will be released on November 18.

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Watch Little Mix perform their new single below: