A zoo spokesman said they wanted Dave to 'help boost the monkey love this mating season. ''

Fewer than 8,000 Barbary macaque monkeys are left worldwide, 140 of which roam freely around Trentham Monkey Forest.   

Park director Matt Lovatt said they wanted to offer a "creative way" to encourage the female monkeys to show "a little affection" to the male monkeys, which he says have not been so lucky in love. 

Lovatt added that "'Monkeys being serenaded by Marvin Gaye – who'd have thought it!"

'Females in season mate with several males, so paternity amongst our furry residents is never known. 

'Each birth is vital to the species with Barbary macaques being classed as endangered."

The birthing season occurs in late spring/early summer each year, so the park will hope that Marvin's song will have worked its magic and they can welcome some new babies to the park later in the year.