In yet another F5 spamfest, many fans have observed Hatsune Miku’s facebook fanpage reaching 500k likes (easily breezing past the Vocaloid facebook fanpage). It moved too quickly to catch it at exactly 500,000, so the image above is the best I managed to get.
To celebrate the event, the page will start to cycle through a new fan-made header image every day for two weeks. Congratulations to Hatsune Miku for the achievement, and of course thanks to all the fans who helped her get there!
[EDITED 5/16/2012]: And coincidentally, not long after this event, mikubook.com has celebrated its 1 million favorites milestone. Congratulations once again!