hɪz pˈɛɹənts, doʊmˈɪŋɡoʊ siːˈɛɹə ænd pˈɪlɚ pˈændoʊ, ɑːɹ spˈænɪʃ ˈɪmɪɡɹənts ɪn tʃˈɪli ʌv ɡælˈɪʃən ænd ɐstʃɚɹˈiən ˈɔːɹɪdʒˌɪn, ɹᵻspˈɛktɪvli.
His parents, Domingo Sierra and Pilar Pando, are Spanish immigrants in Chile of Galician and Asturian origin, respectively.