Engelbert Humperdinck was left angered after BBC reporters questioned his decision to take part in the 'Eurovision Song Contest' in Azerbaijan.
The crooner - who is now in the country preparing for the show on Saturday night (26.05.12) - was said to be furious after journalists for 'Panorama' questioned his views on human rights abuses and asked him to wear a t-shirt with 'please release them' written on it in reference to the country's political prisoners.
The 76-year-old star asked his agent Chris Hewlett to write to 'Panorama' expressing his disappointment.
It read: "I wanted to make very clear how surprised and disappointed we all were that Panorama felt it appropriate to ambush Engelbert on BBC property in order to force a reaction from him, without even giving him the courtesy of time to frame his thoughts.
"'Eurovision' is a BBC show, and he was invited by the BBC to participate, and we feel that these actions by another BBC team were at best ill-judged."
However, a spokesperson for the programme has said they are happy with how fair they had been.
The representative said: "We're satisfied that we've acted fairly and followed our editorial guidelines."
Engelbert will be performing the song 'Love Will Set You Free' this weekend.