Chart veteran Engelbert Humperdinck is trying to persuade The Voice coach Sir Tom Jones to record a duet with him for the first time.
He wants to team up with his fellow hitmaker to work on a tribute to the late manager who kickstarted both their careers.
Gordon Mills worked with both stars in their early days, changing their names to the ones under which they found fame.
Mills - also a songwriter - died from cancer in 1986 at the age of 51.
Humperdinck, whose 1960s hits included The Last Waltz and Release Me, sent his plea to Sir Tom via Twitter while working on an album of duets, which will include collaborations with acts such as Willie Nelson and Sir Elton John.
The 77-year-old said: "Hey Tom, I think we should put our differences aside and record a duet in honour of Gordon Mills. What do you think?"
Humperdinck - who represented the UK at Eurovision last year, finishing second from last - has still to receive a response from his fellow ageing heatthrob.
He later added: "Tom WTF haven't you answered my Tweet from last week? I miss you mate."