They say anything is possible in a cartoon. Heckle & Jeckle taught us that back in the day.
To that end, the creative noobs behind Harvey Birdman, Attorney-at-Law decided to traverse time and space, and do a little reconfiguring of characters as they went along. See if you can figure out what's wrong.
Since the license to use Earl Derr Biggers' classic sleuth, Charlie Chan, had long since expired, [adult swim] couldn't very well use the Chan Clan kids without any sort of litigation getting in the way. So, the Chinese-American Chans, based in Hawaii, are turned into a Japanese pop group, Shoyu Weenie. There has to be some sort of joke involved somewhere in there, don't ya think? Sure, they look the same as they did nearly 40 years earlier, as [as] lifted the character models from the Chan Clan series, but they don't speak English anymore, at least for the purposes of this story, and, even though I know absolutely little Japanese (I go no further than "sayonara" or "domo arigato"), I can tell that the attempt at using Japanese dialogue falls way short of the mark. Typical [as] nonsense, as you'll see.
The original configuration of the Chan Clan band was a trio (Henry, Stanley, & Susie), but the writers changed things around. The Neptunes, the pop group from Jabberjaw, are from the not-too-distant future, and couldn't possibly exist in the 21st century----or could they? There's a story waiting to be told there, but it would explain how Jabber could be in a fever dream of Scooby-Doo's a few years later, wouldn't it?
This was written in such a manner as to embarrass fans of Jabberjaw, Amazing Chan & The Chan Clan, or both. It is, as our frequent correspondent Magicdog often has said, meant for the viewer to be either stoned, drunk, or both when this show is on, because it's written for small minds, wasting the talents of Gary Cole, Stephen Colbert, and others.
Easily one of the worst, unfunniest episodes of the series.