bˈɛst ʌv dˈɛf lˈɛpɚd ɔːɹ ðə bˈɛst ʌv ɪz ɐ kˌɑːmpɪlˈeɪʃən ˈælbəm fˈiːtʃɚɹɪŋ sˌʌm ʌv dˈɛf lˈɛpɚdz mˈoʊst pˈɑːpjʊlɚ sˈɔŋz.
Best of Def Leppard (or The Best Of) is a compilation album featuring some of Def Leppard's most popular songs.