FINALLY, I HAVE IT. Now I can't stop singing "Hamburger Street", ha ha...
Download link (Without the off-vocal version, sorry guys, I couldn't find it :c ) : http://www.mediafire.com/?yejjjmoc2wn
And Hetalia Sound World is also released~ With Japan, Italy and Germany singing "Santa Claus Is Coming To Town" full version~
Download link: http://www.mediafire.com/?dnmezdtmjzd