Hey, sorry for the n00bness but could anyone tell where the heck caramelldansen came form?
is it a Super-Large-Crossover-Anime-Parody?
Thx

Actually the information on Danbooru's wiki is probably as clear and concise as you're gonna find. Just click the ? before the tag.

The original caramell dansen dance starred characters from the ero-ge and anime Popotan. Andddddd it grew to be popular and people put other characters in the originals place