The musicians were ordered to pay $7.3 million (£4.9 million) to Gaye's children following a trial in March (15), which concluded with a Los Angeles jury deciding they had copied portions of the late soul legend's 1977 track Got to Give It Up.

Lawyers for Thicke and Williams have since filed an appeal, calling for a new trial, while attorneys for the Gayes asked for an injunction to stop the pop stars from continuing to profit from the track without sharing the income.

On Monday (15Jun15), Gaye's kids, Nona, Frankie and Marvin Gaye III, lodged new court papers in support of their injunction request, with attorney Richard Busch claiming the monetary damages awarded to his clients were "inadequate" to compensate them for the "irreparable injury" they had suffered, according to

In the documents, Busch continues, "If the court is disinclined to grant the Gayes' request for injunction against an impoundment of Blurred Lines, there is a strong basis for the court to grant an ongoing royalty of 50 per cent of plaintiffs and counter-defendants profits from all future songwriter and publishing revenues generated by Blurred Lines."

U.S. District Judge John Kronstadt has yet to rule on the request.

Meanwhile, Thicke and Williams' argument for a new trial is set to be heard in court on 29 June (15).