Chanel Tapper is a Guinness world record holder, she has the world's longest tongue, measuring 9.75 cm (3.8 in), from tip to top lip. It's twice as long as the average.
Now see what she can do with it. Amazing, isn't it?
After Katy Perry and Michael Jackson comes Mariah Carey.
Skip to 2:45 to watch the part with Michael Jackson, although you should watch the whole video, it's quite interesting.