Woo! I'm goin' to Vegas!
...well not right away. But I'd like to go this year, and maybe I'll see the Popovich Comedy Pet Theater when I do. (Careful, I don't think you can turn off the music at their site.)
Greory Popovich grew up in Russian circuses, and joined the Moscow Circus Group at 17. In 1990 he was invited to join the Barnum and Bailey circus here in the States. In 1992 he was invited to do his clown and juggling act in Las Vegas; in a bit of inspiration he and his wife decided to use their kitten as part of the act, and the response was tremendous.
A friend pointed out that there were lots of possible circus kittens in animal shelters. There aren't animal shelters in Russia, so the bio says, and Gregory was stunned and saddened to see nice animals without good homes. (As all right thinking folk should be.) From then on, all his stars were recruited from shelters. . . and, well, you should see it.
And they live with him and his family. They love each other. Yay.