Black Ice is the 15th studio album by Australian hard rock band AC/DC. It was the band's fourteenth internationally released studio album and the fifteenth in Australia. Released internationally on 17 October 2008, it was produced by Brendan O'Brien. It marked the band's first original recordings since 2000's Stiff Upper Lip, with the eight-year gap being the longest between AC/DC's successive studio albums. Black Ice has the longest running time of any AC/DC studio album.