Rihanna’s first headlining show dark and steamy | Toronto Star Welcome to her nightmares. Nick Krewen Special to the Star Published on Fri Aug 06 2010   Welcome to her nightmares. Psychiatrists would have a field day trying to figure out the meaning and the metaphors for what is going inside Rihanna’s head after what she unloaded on the Molson Amphitheatre audience Thursday night. For her first headlining show, The…