Who did ~ ?
누가 ~했어?
1> Who did your hair?
2> Who did your makeup?
3> Who did the decorations?
1> 누가 네 머리 해 줬어?
2> 누가 네 화장 해 줬어?
3> 누가 장식했어?
Who did / your hair?
누가 했어? / 네 머리
Who did / your makeup?
누가 했어? / 네 화장
Who did / the decorations?