Long Live by Atreyu, though it feels kind of like cheating. They went on hiatus after leaning toward more casual songs with the two albums before, and came back five years later with an excellent album that made people think they were back to their roots. And then they started trending towards the more popular stuff again.
There’s a couple of odd vids that Adult Swim has put out from Alan Resnick, like May I Enter Please? and Unedited Footage of a Bear. There’s one vid that’s just as weird as them called This House Has People In It, but the notable thing is this 12-minute video has a whole ARG behind it, enough to fill a video explaining the lore for over an hour and a half.