The viral kitten that's always sticking her tongue out, Lil' Bub, is using her fame to promote pet adoption.

Lil' Bub was the runt of her litter in Indiana and was brought to a local rescue because she required extra care. (She has no teeth, her tongue sticks out all the time and she has extra toes on all her feet!)

Instead of leaving her alone at a rescue, Lil Bub was adopted by her human Mike Bridavsky, a local radio host.

After a picture Bridavsky posted of Lil' Bub went viral, he started using her to promote animal adoptions.

Watch him tell Lil' Bub's story in this Humane Society video: