User blog comment:Luka8121/Not only do i love Luka but Miku too. Espeici/@comment-5165836-20130710170736

This is nice. :0) World's End Dancehall is definitely one of my favorite songs, too!

The only mistake I noticed was that Luka was the fourth Japanese Vocaloid2, because the order is Miku, Rin/Len, Gackpo, then Luka. Gackpo's birthday/release was July 31, 2008. Be sure to read the status page here at the wiki to figure out which Vocaloids were released when.