Which Famous People Have You Met?

Following on from Roswell's Amazing Experience discussion, I thought that I'd start a discussion specifically around what famous people you have met.

I have quite a lot of famous people over my 50+ years, here's some of them.

Sir Patrick Moore (TV astrologer)
Whilst living in Cyprus in the1970's (dad was in the forces), Patrick Moore visited the  island.
We were doing a space project at school and Patrick came to talk to our class.
I can vividly remember to this day Patrick Moore sat on one of the junior school tables, talking to us.

Sir Bobby Robson (Former England football manager)
I was in Amsterdam on a work training course with a colleague in 2000 which was the year that the Euro's (football tournament) was being co-hosted by the Netherlands and Belgium.
One evening after a hard day in the office we returned to our hotel. As the doors of the elevator opened, there stood a gentleman that looked kind f familiar.
It took a couple of seconds for the penny to drop before I realised who it was and said "Bobby Robson!" and shook his hand.
My colleague blurts out "what are you doing here?", to which Bobby replied, quick as a snap "I've come for the skiing" LOL
He was involved with the TV coverage and apparently Glen Hoddle and other football pundits were staying at the same hotel.

Marillion (1980's prog rock band)
As a teenager I was a massive fan of Marillion - especially as they were a local band.
At various times during my younger teenage years I was fortunate to meet all but 1 of the band members.
I found out where a couple of them lived and went with album cover in hand to know on their doors. Both were more than happy to sign the covers.
In fact, one of them even invited me into his house.
Over the years I have bumped into the bass player - usually in Tesco's or more recently The Range.
I always say hi, shake his hand and have a quick chat about things.
I think that he recognised me in The Range as we passed each other and both stopped, turned around and started chatting (he was off to Canada with the band the next day).

I also met the lead singer "Fish" in a pub whilst I was doing the music for my dad's office department Xmas party.
I was setting up the record players and put on my newly acquired 12" single of Marillion's latest song.
Soon after, the pub landlord comes up to me in the function room at the back of the pub and says "That's Marillion's new song? If you come to the front of the pub, you can meet Fish"
OMFG - My hero, my god, my inspiration was just sat there at the bar drinking alone! He was more than happy to sign the cover and wish me a Happy Christmas.
I was far too starstruck to say much - if I has of been older, I could have bought him a drink! 

That's just a few that I have met - will post more if there is interest.

So, who have you met? What were the circumstances? Were they happy to talk?