Hi AJ and Stewart.
Steve has said before and can confirm that the reference to Marc Bolan being involved in the recording of Make Me Smile is entirely false and untrue. Steve and Marc met in early 1976, a year after its release. He did play electric guitar on "Amerika The Brave". Steve played rhythm guitar and sang harmony on the choruses of Marc's song "Dandy In The Underworld".
AJ, Steve would be happy to talk to you if you would like clarification of details for Wiki articles.
Many thanks for your continued efforts - much appreciated. RACHEL