Why was it unusual? Honestly, because that's the first time any celebrity has appeared in one of my dreams in about three years. I believe the last time I dreamed about a celebrity, it was just after "The Avengers" - I was chatting with Chris Evans over lunch.
What do I think this might mean? Probably that I'm stressed at work and sleep-deprived, both of which are true. I tend to have weird dreams when I'm stressed.