Edit:: My friend just called me haha. One of the things I did translate slightly wrong. It was because of all the background noise so I can see now how I made my error :x I knew that Hyde was having fun with the sound of the word "Gyao" but I wasn't sure exactly why. My friend told me "gyao" is a Japanese onomatopoeia (word meant to represent a sound effect such as "meow" for cat) for roar. And Hyde is having fun with it because the album is titled beast so he's thinking it's fitting that everybody gyao, or roar, for the beast album. But he keeps overemphasizing the sound and throwing it in randomly and at every opportunity which is what's making K.A.Z. crack up. He's saying he hopes that everyone will gyao together. Silly, silly Hyde.

This is why I always want song lyrics to be WRITTEN and in front of me because when there's a lot of background noises (like music, the background noise in this clip etc) I can't trust my ear to hear the Japanese properly haha. I haven't quite reached that level yet. But I'm working on it! Thanks to Kathy, though, I got it worked out. Incidentally, she is my best friend from when I lived in Japan and now living in San Diego. I will be going to stay with her and we will both drive up to L.A. for the Avalon Live. We're gonna be sure to gyao with Hyde when we do haha