No, she's not actually saying Gaga but "Cat-ki" or "cat-cat". That's in response to the ugly hairless cat in the video Bad Romance. I'm surprised she can recognize it's a cat. But she does like the song, too. Have there been any studies done on the effects of Lady Gaga videos on twenty-month olds? Don't worry. She's also got a healthy diet of Wonder Pets DVDs and Dr. Seuss books.