I occasionally meet with celebrities, mainly musicians, in dreams for many years now, despite the fact that I never had interest in celebrities. For instance I met Paul McCartney (interestingly, my least favourite "Beatle"... ), Jerry Cantrell or Hilary Duff, and many others. They are very realistic in terms of personality, energy, behaviour, or intelligence. I've never had met any of them personally. Some of them even taught me things like singing (btw learning things in dreams is very typical to me: from mathematics, to music, to qabbalah, and others). That's really something odd to me.