They Might Be Giants - Courage The Cowardly Dog [Insane] +HDHRDTFL 95.88% FC #1

What an underplayed map. I think it's funny to see 4mod as #1 when #45-50 are all nomod scores. It's not a very new map either, it was ranked almost 2 years ago, but I guess the audience of people who would want to play a map like this isn't very large.
/beatmapsets/1767910#osu/3620312