곡의 제목인 Dumb Dumb은 노래 전반에서 여러 번 반복되며, 아이린과 조이가 부른 랩 부분에서는 마이클 잭슨의 유명한 곡들인 "Beat It", "Bad", "Billie Jean", "Leave Me Alone", "Black or White", "Man in the Mirror", "Why You Wanna Trip On Me", "Scream", "Love Never Felt So Good"와 "Thriller"가 등장한다.
The song's title is repeated several times throughout the song and features a rap verse that references a number of Michael Jackson's songs, including "Beat It", "Bad", "Billie Jean", "Leave Me Alone", "Black or White", "Man in the Mirror", "Why You Wanna Trip On Me", "Scream", "Love Never Felt So Good" and "Thriller", which was performed by members Irene and Joy.WikiMatrix WikiMatrix