Florida Georgia Line have countersued the boss of Utah's Country Explosion festival after the duo and its tour manager were hit with a $15 million (£8.8 million) lawsuit for breaching an agreement over payment for the gig.

Last July (14), the Cruise hitmakers closed the final night of the four-day bash and their road manger Troy Johnson was given a cheque for $205,000 (£120,588) to settle the outstanding balance on their $450,000 (£281,250) appearance fee.

However, the cheque bounced, and in August (14), Country Explosion owner Darren Brady hit Johnson, musicians Brian Kelley and Tyler Hubbard, and manager Seth England with the multi-million dollar lawsuit, claiming organisers asked Johnson to wait three days before cashing the cheque.

They also alleged a subsequent email from the band's camp caused significant damage to the company's reputation, and demanded $15 million in damages and a formal apology.

Now it has emerged that last month (Jan15), Florida Georgia Line's legal team filed a breach of contract suit, claiming that a "stop payment" had been ordered on the cheque in July (14), and that Country Explosion Llc and Brady "continue to refuse to pay Fgl for its July 20 performance".

They are suing for fraud and breach of contract and want the $205,000 originally promised from the gig, as well as fees, interest and punitive damages.

The band's attorney Chris Vlahos tells Billboard, "This whole thing, $15 million for defamation and toxicity, is really nonsense. They've never served anybody, the suit is dead on the vine. It was nothing but a Pr (public relations) piece."