Demi Devonne [Edit] By Sticky Facts Editorial StaffDemi Devonne biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:Demi Devonne date of birth:August 20, 1992How old is Demi Devonne?34 Tags: birth day 20birth month augustbirth year 1992 Suggested Posts Stephen Hawking Facts Mila Kunis Facts Drake Facts Adam Sandler Facts The Weeknd Facts David Bowie Facts James Gandolfini Facts Adele Facts