Michael Buble put on a special performance for some of his more surprising fans – three silverback gorillas.
According to staff at Werribee Open Range Zoo in Australia, keepers often play the Canadian star’s Christmas music to western lowland gorillas Ganyeka, Yakini and Motaba.
The primates were treated to a special show as Buble made a visit to the Victoria park.
Keeper Ben Gulli said: “When we play Michael Buble’s CDs, the boys will instantly start pleasure grumbling and sit nice and calm and relaxed.
“Our theory is it’s the beautiful low tones that he sings with kind of mimics their pleasure grumble and they’ve even been shown to hum little food songs when they eat, and we think he must really resonate with that sound.”
Buble sang specially adapted versions of some of his well-known standards, including Santa Claus Is Coming To Town and I’ll Be Home For Christmas.
The gorillas seemed to enjoy the private concert.
Buble said: “Apparently when they go to bed at night sometimes they play them my Christmas music and so I was singing to them and I had no idea what would happen, and it was amazing. The reaction was amazing.”
Buble released his album Christmas in 2011 and it has become a favourite in many households.