The “ Heated Rivalry ” phenomenon is headed to the stage. “Heated Rivalry: The Unauthorized Musical Parody” will run Off- Broadway this spring following eight sold-out concert performances earlier this month. Inspired by the hit show about hockey and gay romance, “Heated Rivalry: The Unauthorized Musical Parody” follows starry-eyed golden boy Shane Hollander on “his journey from power center to power bottom,” according to a press release. Written by Dylan MarcAurele, the production will star