US presidential hopeful Mitt Romney will have to fight to keep using THIN LIZZY music to back his campaign.

The wife of Phil Lynott, the band's legendary frontman, said there was no way the singer would have supported the Republican candidate.

Caroline Lynott-Taraskevics has told the band's record company to issue a cease and desist order preventing Romney from using Thin Lizzy classics.

"It's too late to stop it happening but it'll prevent a recurrence," she said. "In America, the record company gives permission, so we have told them to issue a cease and desist order to the Republican Party."

Lynott's wife and his mother Philomena were angered after Mr Romney used the anthem The Boys Are Back In Town at the Republican convention in Florida.)