In 1984, Hanneman, Lombardo and Suicidal Tendencies guitarist Rocky George had a brief hardcore punk side project called "Pap Smear" – the band had many tracks and was due to start recording when Hanneman was advised to avoid the side project by Slayer's producer, Rick Rubin, who is quoted as saying "Aaaah, don't do it, man – this is the kind of thing that breaks bands up!" and Hanneman took Rubin's advice. Only a demo was recorded, consisting of Hanneman on vocals and bass, Lombardo on drums and George on guitar. Later two of the songs were re-recorded on Slayer's 1996 album "Undisputed Attitude".