Actress Margot Robbie has a pet rat. Photo / Getty Images, Thinkstock
Margot Robbie was given a rat by Jared Leto while filming Suicide Squad. Leto, who plays the Joker, sent his co-stars creepy gifts to get in character. Robbie has kept the rat as her pet. It's called Rat Rat and it eats organic berries.
Famously spends $US40,000 ($NZ60,513) a year on her pet lemurs. She's had them for more than 30 years and employs two full-time zookeepers to look after them.
Loves his pet tigers. He even had a cameo appearance with a tiger in The Hangover movie.
Made a lifetime investment when he bought a pet tortoise. He purchased the 10-year-old tortoise in 2010, which could live to be 80 years-old.
Paid $US150,000 ($NZ226,923.77) for a pet octopus, which he said would help his acting.
Has a huge collection of snakes and reptiles. In 2014 he tweeted about the death of his boa constrictor, Pandora, which he'd had since 1988.
Had a pet pig for 18 years, his longest relationship ever.
Has gone through a string of unusual pets. He stepped onto the red carpet in 2011 with a pet snake wrapped around his wrist. In 2013 his pet Capuchin monkey, Mally, was taken into quarantine when Bieber tried to take take the animal into Germany without the proper paperwork.
Also had a pet primate - a chimpanzee called Bubbles. The chimp would go on tour with MJ and sleep in his bed. Jackson also said Bubbles would help clean the house.
Keeps a menagerie at her Los Angeles home, including two pet donkeys - Honky and Tonky - and 30 chickens.
Her family also have a pet chicken, called Coco Chanel. Spelling is often seen walking her pet goat, Totes McGoat, on the streets of Los Angeles.
Of Aerosmith fame Tyler grew up with a pet raccoon.
Kept a large collection of animals at his Graceland home including monkeys, horses and pigs. In 1957 Elvis was sent a pet kangaroo as a gift, which he donated to the Memphis Zoo.
Has a pet wallaroo and a pet goat. In 2004 he was fined for having an expired pet licence.
Bonded with a baby deer while on the set of Green Mansions in 1959. The animal trainer suggest Hepburn take it home so they could get used to each other. Hepburn named the fawn Pippin and took it everywhere with her.
Was once photographed walking an anteater in Paris.
- AAP
This year of TV has had something for everyone.