"Ummm... guys.... meet Batman....." the "Cool for the Summer" singer wrote on Instagram.
Demi's little sister Madison De la Garza also posted a super cute pic on Insta, writing, "Welcome to the family, batman."
We're so happy to see that Demi (and of course her boyfriend Wilmer Valderamma) has a four-legged companion again. Especially because her last dog, Buddy, tragically passed away last month. We bet Batman is totally lifting Wilmer and Demi's spirits!
What's your pet's name? Share it with us by commenting below!