I whakaputaina e Erna te pukaemi i hangaia e te kaiwhakanao rongonui me te kaipūkaha Andy Johns, e mohiotia ana mo te hangarau Led Zeppelin's Led Zeppelin IV. Ko te tuatahi kotahi i te pukaemi, "Speak" i tukuna i runga i Hui-tanguru 14, 2006. te pukaemi debuted i runga i te tau kotahi i runga i te Billboard 200, hoko 211,000 kape i roto i tona wiki tuatahi. Kua IV kua mai kua tiwhikete koura. i tuhituhia e te rōpū i runga i wha tekau waiata mo te pukaemi, engari i te rārangi whakamutunga i kotahi tekau ma tahi nga ara, Larkin kōrero, "te rōpū o Sully me tona whakaaro o te reira te wa ki te tiki i te waiata i te reira katoa". te ingoa "IV" minimalist o Godsmack i ahu mai kore anake i te ingoa o te wha o te rōpū o te pukaemi studio, engari ano hoki i mohiotia mō te engineering Led Zeppelin's Led Zeppelin IV. i tukuna i runga i te pukaemi tuatahi o te pukaemi, "He aha te mea nui rawa atu i roto i to tatou katoa, engari ka taea e te tango i
kia taea ai e rātau te tuku i tētahi pukaemi pai rawa atu