Well I have no idea who those people are at all. My favorite celebrity encounter (and excuse me if I've told this tale before) was meeting and hanging out with Jimmy Page from Led Zep back in October 1988. Random chance, he was just bebopping around random bars the night before his solo concert the following evening. Cool dude, just sitting in with various house bands around the bar district that evening. So I sat down to talk with him and he's just all "Hello, I'm Jimmy Page and I'm drunk off me arse".
This is when I realized that celebrities, even one of the biggest guitar gods of all time, still put their pants on one leg at a time. They usually don't even like their celebrity status at all, either. Cool people.