While most of us could only dream of striking up a friendship with the British royals, if you’re an A-list celebrity, the chances of you rubbing shoulders with UK’s most famous family might not be so slim. Here are a few friendships between royals and stars that you may not have known about … Thanks, Gran! Queen Elizabeth gifted all these epic pads to her family Prince Harry and Michelle Obama We all know that Prince Harry is a pretty amiable guy (excepting the occasional snippy comment to reporters ). And whenever we see former US first lady Michelle Obama…