London, Feb 16 : A song, which is completely inaudible to human ears, has become a huge hit among the pups of New Zealand.
The song, "A Very Silent Night" is said to be recorded at such a high sound frequency that only dogs can hear it.
The tune was issued as a CD by the Royal New Zealand Society for the Prevention of Cruelty to Animals just before Christmas to raise funds.
To everyone's astonishment, the production in no time reached the number one position and was dubbed as the 'top of the pups' song.
It has sold 6,000 CDs, a considerable achievement in the tiny New Zealand market, at 1.50 pounds each.
The accompanying video shows Dei Hamo, a New Zealand singer, and two female companions, who formed into a group calling themselves 'The Underdogs' for the occasion, mouthing the words of the song.
"We are delighted with the success of the CD in New Zealand, and are very grateful for the time and expertise given," the Telegraph quoted Bob Kerridge, chief executive of the Royal New Zealand Society for the Prevention of Cruelty to Animals, as saying. e added that when the single was tested on strays at one of the society's dog pounds, they are said to have "loved it".