'Heartbreaker' singer Mariah visited Cleland Conservation Park in Adelaide, South Australia, with her twin children Monroe and Moroccan.
Posting a photo on Instagram, Mariah said: "Everyone needs Edmond the Koala in their lives! At Cleland Wildlife Park #Adelaide #Australia."
In another photo, Mariah - who is currently touring in Australia - looked content holding Edmond as her three-year-old kids wrapped their arms around her.
Judging from the photos, it's fair to say that the trio fell in love with their very cute and furry friend!
Edmond the koala wasn't the only Cleland resident to catch Mariah's eye, as the superstar also got up close and personal with kangaroos (watch the video below).
Looking as glam as ever, Mariah once again chose style over comfort, as she turned up to the conservation park in a red gown, which she teamed with black peep toe heels.
It's good to see Mariah with a smile on her face following her separation from husband Nick Cannon.
In August, Nick had been quoted as confirming that he and Mariah were currently living apart following a rough patch.
However, during a mega Twitter rant Nick later denied ever giving a statement about his marriage.
Nick went on to praise Mariah though, saying he will always love her. He tweeted: "I will forever be indebted to her for blessing me with our children. I will always love her unconditionally for this and so much more. Mariah is an amazing mother and I trust her wholeheartedly… I love Mariah and that will never change."
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Watch Mariah with the kangaroos in the video below: