Jennifer Aniston's real last name is Anastasakis, but her father, John Aniston, of Greek descent, decided to change it because people in the United States found it difficult to pronounce it. Oprah Winfrey's real name is Orpah, but she stayed with Oprah because people misread her. A poet decided to call John Roger Stephens a legend, so he is known today as John Legend. When she became an actress, Blake Lively decided to keep her mother surname, while Abel Makkonen Tesfaye decided to put his stage name after leaving school and running away from home; removed an "e" to avoid copyright issues. The list of real names of celebrities is as follows:
Blake Lively — Blake Ellender Brown
Meghan Markle — Rachel Meghan Markle
Emma Stone — Emily Jean Stone
Post Malone — Austin Richard Post
Jennifer Aniston — Jennifer Anastasakis
The Weeknd - Abel Makkonen Tesfaye
Oprah Winfrey — Orpah Gail Winfrey
Meryl Streep — Mary Louise Streep
John Legend — John Roger Stephens
Natalie Portman — Neta-Lee Hershlag
Meg Ryan — Margaret Mary Emily Anne Hyra
Kit Harington — Christopher Catesby Harington
Irina Shayk — Irina Shaykhlislamova
Gigi Hadid - Jelena Noura Hadid
Portia de Rossi - Amanda Lee Rogers
Calvin Harris — Adam Richard Wiles
Vin Diesel — Mark Sinclair Vincent
Source: Bright Side