YOU SAID:

let them laugh in my face I dont care

INTO JAPANESE

気にしないで私の顔に彼らを笑わせる

BACK INTO ENGLISH

Don't bother make them smile on my face

INTO JAPANESE

気にしないで彼らを私の顔に微笑ませて

BACK INTO ENGLISH

Don't worry, let them smile on my face

INTO JAPANESE

心配しないで、彼らを私の顔に微笑ませて

BACK INTO ENGLISH

Don't worry, let them smile on my face