When a sim starts out on the path toward becoming a five-star celebrity, the paparazzi start following the sim around. Usually there’s just one NPC sim who watches, and takes notes and photographs, but there are times when that first paparazzi gets tired and hands off the watching duties to another NPC. I often see their work periods overlap with two of them following my one-star celebrity like this time when my sim went fishing in Shang Simla..
No matter what worlds and traveling expansion packs you have installed, the paparazzi will find your celebrity sim whenever and wherever he travels. The advantage here is that a celebrity sim is more likely to get the “In the limelight” positive moodlet during a shift change like this.