Headache 作词 : William Roberts/Vanja "Oneya" Ulepic/Slobodan Veljkovic/Samuel Jacquet/Jamal Rashid/Karim Kharbouch/Janet Sewell 作曲 : William Roberts/Vanja "Oneya" Ulepic/Slobodan Veljkovic/Samuel Jacquet/Jamal Rashid/Karim Kharbouch/Janet Sewell