Pretty sure Koreans can pronounce their Rs just fine.... At least, as a kpop listener, I've never heard a weird pronunciation of most English letters or words by Koreans. They use Rs as Rs in most of their words I think.
Never point directly at the portrait of Uncle Jim.
Never allow your head to be higher than the portrait of Uncle Jim.
Never turn your back to the portrait of Uncle Jim.
Speak in quiet, reverent tones when in front of the portrait of Uncle Jim.
Do not look directly at the portrait of Uncle Jim.
Honor Uncle Jim in all your deeds and thoughts throughout the day.
Never allow your head to be higher than the portrait of Uncle Jim.
Never turn your back to the portrait of Uncle Jim.
Speak in quiet, reverent tones when in front of the portrait of Uncle Jim.
Do not look directly at the portrait of Uncle Jim.
Honor Uncle Jim in all your deeds and thoughts throughout the day.