ɪn tˈuː θˈaʊzənd ɪlˈɛvən, smˈɪθ kəntɹˈɪbjuːɾᵻd vˈoʊkəlz fɔːɹ sˈɔŋz "dʒˈɑːʃjuːə" baɪ nˈɔːɹðɚn ˈaɪɹɪʃ ᵻlɛktɹˈɑːnɪk bˈænd ðə dʒˌæpənˈiːz pˈɑːpstɑːɹz ænd "ðə kˈɔːl" baɪ lˈʌndən slˈæʃ mˈæntʃɛstɚ pɹəɡɹˈɛsɪv hˈaʊs pɹˈɑːdʒɛkt ɹˈeɪzd baɪ wˈʊlvz.
In 2011, Smith contributed vocals for songs "Joshua" by Northern Irish electronic band The Japanese Popstars and "The Call" by London/Manchester progressive house project Raized by Wolves.