Need help with finding a certain song...

[Sasami Jurai]

Hiii, I need help. At the Anime Expo 2008 Karaoke room, there was this adorable boy who cosplayed as a blue bunny and painted black whiskers on his face. He was creative and his dance moves were funny and intriguing as well.

So he was singing this song that went something like this.... (I'm not 100% accurate on describing the lyrics.. )

[Japanese vocal..] chu chu chu chu
[Japanese vocal..]

Flash!!

[Japanese vocal..] chu chu chu ......
.... [Japanese vocal...]
.....

Flash!!

I don't know.... >.<



But his cosplay was a blue bunny thing and I think it has to do with the Anime. I don't know....

Please help....

[Dreams]

It's probably neither of these, but...

Chu Chu Chu (from 'Wish')
Chu! Natsu Party ~3-nin Matsuuri (I love that song)