Next time you hear a celebrity complaining about the paparazzi, keep in mind that most of them make the call to the paps themselves.
Earlier today Miley Cyrus stopped by a juice bar with her mother Tish.
When a customer asked the paparazzi how they knew she'd be there, the pap replied, "They call us."
A lot of times celebrities assistants will call the paparazzi and give them a schedule of the stars daily activities, i.e., where they will be having lunch, shopping, who they'll be with, etc.
Check out the clip of Miley with her mother below at the juice bar. The woman asks the cameraman about Miley about 30 seconds into the clip.