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 Zinédine Zidane Facts Jennifer Lopez Facts The Weeknd Facts David Bowie Facts Amy Winehouse Facts Lena Headey Facts Jim Carrey Facts Marilyn Monroe Facts