This is the 4323rd most frequent Korean word.
콘서트를
"콘서트를" is the object form of "콘서트," meaning "concert."
Here, '콘서트를' is the object of the verb '갔다', showing the activity participated in.
어제 나는 친구들과 콘서트를 갔다.
Yesterday, I went to a concert with my friends.
In this sentence, '콘서트를' is the object of the verb '보러', indicating what is being watched.
내일 콘서트를 보러 갈 계획이 있어요.
I have plans to go watch a concert tomorrow.
Here, '콘서트를' is used to specify the event for which the action (shopping for clothes) is being prepared.