Supernatural Season four title card. Photo courtesy of Wikimedia Commons. Entertainment 2017’s Supernatural convention was Houston’s swan song By Crystal Sauceda Last updated Feb 21, 2017 226 0 [View the story “2017’s Supernatural convention was Houston’s swan song” on Storify] gilmore girlsHoustonjared and jensenlast conventionsam and deanspnhousSupernaturalThe CW 0 226 Share EmailFacebookTwitterGoogle+ReddItWhatsApp