This is the 14568th most frequent Korean word.
뮤지컬을
"뮤지컬을" means "musical" (referring to a stage performance with music) with the object marker "를" attached.
In this sentence, '뮤지컬을' is the object of the verb '보러 가다,' indicating the specific thing that will be watched, which is '뮤지컬' (musical).
나는 주말에 뮤지컬을 보러 갈 거예요.
I will go watch a musical this weekend.
Here, '뮤지컬을' serves as the object of the verb '즐기다,' describing the action of enjoying the musical.
그녀는 뮤지컬을 아주 재미있게 즐겼습니다.
She enjoyed the musical very much.
In this case, '뮤지컬을' acts as the object of the verb '관람하다,' which means to view or watch something like a performance or movie.