Scratch that comment about Elvis. Elvis had his issues, but being a pedophile was not one of them.
They were similar, however, in the impact megacelebrity had on their mental health. At a certain point, they both were so surrounded only by Yes-Men that neither one had anyone to say "No" to their excesses of drugs and indulgences that were killing them.
I read somewhere that Michael married Lisa Marie because he felt she could understand his situation in life.