kjˌuːˈɑːɹ ˈɔːlsoʊ nˈoʊn æz kwˈaɪət ɹˈaɪət, kwˈaɪət ɹˈaɪət ɹˌoʊmən fˈoːɹ, ɔːɹ kjˌuːˈɑːɹ ɹˌoʊmən fˈoːɹ ɪz ðə sˈɪksθ stˈuːdɪˌoʊ ˈælbəm ɹᵻlˈiːst ˌɔn ɑːktˈoʊbɚ twˈɛnti wˈʌn, nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi ˈeɪt, baɪ ðɪ ɐmˈɛɹɪkən hˈɛvi mˈɛɾəl bˈænd kwˈaɪət ɹˈaɪət.
QR (also known as Quiet Riot, Quiet Riot IV, or QR IV) is the sixth studio album released on October 21, 1988, by the American heavy metal band Quiet Riot.