Guess the name of an idol group by looking at the initial consonants only

6) Guess the idol group name just by looking at the initial consonants🌈

1. ㄹㄷㅂㅂ

2. ㅁㅁㅁ

3. ㄱㄱㄷ

4. ㅍㄹㅁㅅㄴㅇ