The 'Love Is a Losing Game' singer is currently in Barbados staying at a private villa and landed herself the simian chum after she fed the animal while relaxing in the sun.
The monkey has been following around the 27-year-old music star for the past week and she likes her new furry friend so much she wants to bring him back to the UK with her.
A source told The Sun newspaper: 'Amy has made friends with a monkey. It came up to her and she fed it and it's been following her around. She's been telling friends how much she loves it and would love to bring it back with her.'
But Amy isn't only in Barbados to make friends with monkeys, she is taking a short break before she heads out on the road for a series of concerts.
The 'Rehab' hitmaker is performing a one-off show in Russia in December before heading to Brazil in January for a mini-tour which will include stops in Rio De Janeiro and Sao Paulo.
She has also been working on the follow up to her multi-million selling 'Back to Black' album.
Amy is known for her love of animals and at one point she owned 11 cats.
However, she had to give the felines away earlier this year because they were wrecking her London home. She gave two to her goddaughter Dionne Bromfield and the rest to an animal shelter.