"Hard as a Rock" is a song and a single by the Australian hard rock band AC/DC. It features as the first track on their album, Ballbreaker, released in 1995. It became their second No. 1 song on the Album Rock Tracks chart, following 1993's "Big Gun". Live performances are also included on three of AC/DC's live concert DVDs, No Bull (of which an audio version is found on the Australian tour edition of Stiff Upper Lip), Stiff Upper Lip Live and Live at the Circus Krone, which is featured in the Deluxe Edition of the 2009 boxset Backtracks. A live version recorded during the band's Stiff Upper Lip World Tour in 2001 at the Stade de France in Paris appears on the 2007 Plug Me In three-disc DVD. It is also featured on the 2012 film Battleship, along with "Thunderstruck".