This was one of the last songs Bon Scott recorded before he died (his last was a cover of an earlier AC/DC song called "Ride On," recorded February 10, 1980 with the French rock band Trust). It also happened to be the last song on his last album, Highway to Hell
. He was a fan of Robin Williams, and ends the song with Williams' famous catch phrase 'Shazbot, Nanu Nanu!' Which is what the character 'Mork' from Mork And Mindy
used to end transmissions to his home planet with.
Joe - Kalamazoo, MI