"sˈaɪ pˈaʊɚ" ænd "twˈɛnti fˈaɪv jˈɪɹz" wɜː ɹᵻlˈiːst æz sˈɪŋɡəlz bˌʌt ɑːɹ slˈaɪtli dˈɪfɹənt vˈɜːʒənz tə ðoʊz ðæt ɐpˈɪɹd ɔnðɪ ˈælbəm.
"Psi Power" and "25 Years" were released as singles but are slightly different versions to those that appeared on the album.