Simon Cowell's label, Syco, and Leona Lewis are set to face a legal battle next Monday (August 8) over the release of her new single, 'Collide'. 

They are being taken to court by DJ Avicii - real name Tim Bergling - over claims that the instrumental of her new track plagiarises his own song 'Fade into Darkness'.

The Swedish dance producer is set to make a plea to the High Court on Monday for an injunction against the release of Lewis's song, which is due to be released on September 4. 

Avicii recorded 'Fade into Darkness' last October before being signed to the independent label Ministry of Sound. Bergling alleges that his team denied Syco use of the instrumental as he was searching for a female vocalist to sing on the track before officially releasing it himself.

He also claims that 'Collide' is a "straight re-recording" of his song, while a spokesman for Ministry of Sound said, "Avicii is an up-and-coming talent; we think he should be given a fair crack at making this record the hit it deserves to be." 

Syco and its parent label Sony have so far issued no comment.

Listen to Leona Lewis' 'Collide' below: