I don't think I've met that many celebrities, certainly not recently anyway!
I have met several members of the Royal family, do they count as celebrities?
Queen Mum visited our army base with the Queen - really lovely, both of them
I met Prince Charles (he was quite pally with my Grandad too) when my choir sang a special concert for him. He was really nice too.
Timmy Mallet - what an arrogant wanker. My little sister, who was only 5 or 6 at the time, was standing on a low wall so that she could see him when he arrived. He rudely brushed past everyone and knocked her flying off the wall. He didn't even stop and apologise!
When I was at Donnington Monsters of Rock festival as a giddy teenager, I turned around from collecting my beer and spilt it all over Sebastian Bach (from Skid Row). He was wearing a very (un)fetching pair of blue leather trousers so didn't get too wet but he laughed and bought me some new beers. My friends didn't believe me when I got back to them 
Whilst at an Ozzy Osbourne gig (I'd gone to it because one of my favourite bands at the time was supporting him), I decided to while away the time in the bar and it was completely empty...apart from all the band members of the band I'd gone to see (Fear Factory)! I was thrilled and sat and had a pint with them. They were all very lovely and signed my gig ticket for me.
Whilst hanging out in the Red Bull F1 factory (my husband was doing some work there so I tagged along), Christian Horner opened the door for me
. He's not really a celeb outside of the F1 world but I was a bit awestruck so only managed a 'thank you'
The daughter of 'celebrity' chef Marcus Bean goes to my children's school so I regularly bump into him in the playground. His wife regularly promotes him as 'celebrity chef Marcus Bean' but I've never actually seen him on the TV 