I vacationed a lot at Disney growing up, I think my last name is now Mouse.I saw her instagram video where she admitted she was born in Boston. I honestly think her parents vacationed in Spain, and she embellished it to seem like she grew up there.
My parents vacationed in Port Dover, Ontario. I’m going to start using a Canadian accent.
from the mid-west, with an American accent. About 15 years later, now named Stefan, he finally owns his own restaurant on the west coast. He travels to Europe every summer to bring back new recipes & techniques he's learned there. He now has an indeterminate European accent, especially when he's speaking to his rich clientele, who, I guess, think he's European since his accent and recipes are. 
Meh, I really don't think it's that unusual. I think people change their personae, looks, presence, social standing, level of education, perceived monetary status, a lot. People who usually do this aren't famous, or associating with famous people. So that people who did know them way back when could out them on social media.
Maybe it's because i know a few people who did this. I actually know somebody who pulled a "Hilaria." Steven and I used to work for a 5-star catering company in NYC. Steven was a very junior, assistant-chef,
The other two people I know were couple people back in high school, who couldn't wait to graduate and move away to a place where no one knew them, so they could change the horribly ridiculed identities they were saddled with in elementary through high school. No accent or ethnicity change, but they changed their hair, their looks, their make-up, got rid of the coke bottle lens glasses, bought a new wardrobe, some people dumped weight, etc., so new people in their new locations would respond to them differently than the mousy, geeky, nerdy, poor, loser, etc, identity that they had.
Well, Madonna changed a lot when she dropped Ciccone from her name.
Try John Mahoney. He grew up around Manchester, but everything thinks that he was born American. He even got to use the old accent - or at least someone trying.
I know someone who did a "Madonna." She spent most of a college year in England as an exchange student. Normally, she had a very heavy Jewish, Long Island, NY accent. Think George Costanza, (from Seinfeld,) parents' accent. She comes back from England with a heavy British accent and spouting how much better everything that is British is. 
Luckily the semester was ending, and I didn't have to see her or my eyes would have been permanently stuck in the back of my head.
She’s said she is, but we’ll see. The “likely” always leaves room...
She went to prep school in Massachusetts. She's in the year book and several people who went to the school knew of her. She was Hillary Hayward-Thomas in her HS days.
