Sir Tom Jones on rival Engelbert Humperdinck: 'Once a c*** always a c***'

Sir Tom Jones discussed his long-running feud with fellow crooner Engelbert Humperdinck, stating that he will never resolve his problems with the 79-year-old singer.

Jones, 75, was recently axed as a judge on BBC's The Voice. Promoting his new album and book, he spoke to the Metro regarding his remaining bad blood with Humperdinck, an artist he once shared a manager with.

Asked if he would ever patch things up with his rival, Jones replied: "No. It's as I say – once a c*** always a c***".

There has long been reports of competition between the two veteran performers, with Wales Online writing that the pair "grew resentful of each other's success and developed a simmering rivalry" and "haven’t spoken a word to each other in the last two decades".

In 2013, Humperdinck reached out to Jones, tweeting: "Hey Tom, I think we should put our differences aside and record a duet in the honour of [former manager] Gordon Mills. What do you think?" Jones failed to respond.

Tom Jones had CSNY on his TV show and even sang lead while they performed "Long Time Gone." Case closed.