The 20-year-old 'We Can't Stop' singer formed a close bond with the mystery fan after they exchanged phone numbers a few months ago.
Cyrus has now invited her to fly to Los Angeles and spend the summer living at her mother Tish's house so she can be the singer's new personal assistant, reported E! online.
"Yeah, she is actually flying out here and staying with my mom this summer, she is going to work for me for the summer. Let me tell you, I never know... I don't know if this is how it works for you, but no one ever tells me anything, I'm the last to know everything," Cyrus said at a chat show.
