He could’ve avoided the whole thing by just maybe not singing the song! I don’t see a problem with singing this song and crediting both artists cause that’s how normal people act outside of Korea. He knows that it will cause an issue for mentally disabled people to mention Rosie so he sang her song and credited one artist which is not the solution. He made a bigger problem now “to crazy fans”. He had three choices, sing the song and credit both=problem but brave act. Sing the song and don’t credit any of them=most likely not a problem or don’t sing the song at all= safe choice