After experiencing the loss of her previous owners and being found in their backyard, Dolly became the oldest dog in the shelter, but her luck changed when a Generation Z woman decided to give her a chance.

The 26-year-old called Kim told Newsweek: "Her shelter notes said she was refusing to leave her kennel due to anxiety and not eating her food, and it broke my heart."

However, now Dolly is like a new dog, as seen in a popular TikTok clip shared by her owner Kim, who doesn't wish to share her surname (@pandasparties). The video montage shows 9-year-old Dolly's first car ride from the shelter, where she continuously barks, followed by more-recent footage of her calmly cruising in the car, along with other clips showing her transformation.

The text layered over one scene of Dolly playing with a ball reads, "I'm a puppy again," highlighting how energetic she has become compared to her time at the DC Humane Rescue Alliance shelter, based in Washington, D.C.

The montage of videos has over 70,000 views and has certainly put a smile on many faces.

One user wrote: "I haven't got the right words to describe how beautiful this is. Thank you so much for saving a senior."

"From the shelter to living the best life! Stay sassy Dolly dearest!" posted another.

Kim came across the Staffordshire terrier cross, after her dog Panda passed away. She told Newsweek: "I believe it was meant to be that we found each other. We needed each other."

Living with Kim took some getting used to, and Dolly was easily frightened, often waking up in the night, shaking and barking.

"She was scared a lot, especially of trying new things. But, now, she demands to get in the car so we can go shopping," Kim said.

The Tennessee-based owner added: "Dolly's vet said she didn't even recognize her after our first visit because she's now so happy and full of life."

Senior dogs have a 25 percent adoption rate, compared to the 60 percent adoption rate of younger dogs and puppies, according to The American Society for the Prevention of Cruelty to Animals (ASPCA).

Kim said: "Dolly is a great example to people to never overlook the older dogs at the shelter, because they deserve love and a forever home just as much. And I remind her constantly that it was never her fault that she ended up in a shelter."

Do you have funny and adorable videos or pictures of your pet you want to share? Send them to life@newsweek.com with some details about your best friend, and they could appear in our Pet of the Week lineup.