Kevin Costner welcomes 'newest member' to the family: 'Already in love.'

Kevin Costner revealed a new member of his family to social media on Thursday.

The "Yellowstone" actor shared a lovely yellow Labrador puppy on Instagram.

"Newest addition to the family," he captioned a carousel of photos posted online. 

Costner donned a blue flannel shirt and jeans as he leaned against his truck, watching his new puppy run across the lawn. 

The two new best buddies nestled together in a cute black-and-white photo before the small man napped on the floor.

 In 2010, Costner, a long-time animal supporter, teamed up with The Orange Dog to rescue four-legged pals from overcrowded facilities.

The "Field of Dreams" actor accompanied his pet dog Daisy on the excursion

which involved a private jet transfer from California to Edmonton, Canada.

"[It's] effectively a trade of animals that were scheduled to be euthanized. 

 Instead, they are making their journey to Canada for a second chance at life. 

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