Rock Hard Rock Hard "Rock Hard" is a single by the Beastie Boys, released by Def Jam Records on 12" in 1984. The song, and the accompanying songs on the 12", feature the band's first major label rap effort. The track contains samples from the AC/DC song "Back in Black", which was used without obtaining legal permission - thereby causing the record to be promptly withdrawn. Later, when the group planned to include the out-of-print song on their 1999 compilation, "", AC/DC refused to allow the sample to be used. Mike D spoke to AC/DC's Malcolm Young personally on the phone when
Angus Young he would begin using in 1977, was also used as a compressor and a booster in his signal to "fatten up" his tone. Ever since adding it to his rig, it was used on several albums in the studio for chosen rhythm guitar tracks and all lead guitar tracks. Beginning with "Rock or Bust", due to the discontinuation of the Schaffer system, Young began using a replica of the unit's preamp with a commercial wireless unit. Contrary to popular belief, Angus and Malcolm have both stated in guitar enthusiast magazine interviews that very little pre-gain, if any, is used on