Folk rock musician John Denver referred to the proposed labels as censorship and stated he was "strongly opposed to censorship of any kind in our society or anywhere else in the world", and that in his experience censors often misinterpret music, as was the case with his song "Rocky Mountain High". He further compared the PMRC proposals to Nazi book burnings, and expressed his belief that censorship is ultimately counterproductive: "That which is denied becomes that which is most desired, and that which is hidden becomes that which is most interesting. Consequently, a great deal of time and energy is spent trying to get at what is being kept from you." When Denver came up to give his speech, many expected him to side with the PMRC.