YOU SAID:
don't wear band tees if you don't listen to them.
INTO JAPANESE
バンドTシャツを聴かないときは着用しないでください。
BACK INTO ENGLISH
Do not wear a band T-shirt when not listening.
INTO JAPANESE
聴いていないときはバンドTシャツを着用しないでください。
BACK INTO ENGLISH
Do not wear a band T-shirt when not listening.
You've done this before, haven't you.