Well jk was barely in school for one. Also, Rm is nowhere near fluent in my opinion. English is very different than Korean. It must be hard to learn. Some words are tongue twisters even for a native speaker. Also, if you think about it, Jkay already had to get rid of his Busan dialect and learn how to speak in a clear Seoul accent. I don't see what the big deal is or the point of your posts.
I could tell immediately by your numerous grammatical mistakes that English is not your first language, so I'm surprised you are bringing up jk having a difficult time singing "tangled." Both of y'all need to stop being petty.