Following the thread that I’ve made a few days ago about youtubers talking about Japanese internet slang (日本語のネット用語), this one focuses instead on Japanese tongue twisters (早口言葉). They speak half EN half JP, the video has some subtitles and it also has the tongue twisters displayed so that you can give them a try as well.
I consider my JP pronunciation to be reasonable and damn… I quickly went くうきょなきゅうしゅうくうこうhshだshdさkさkだ