Yes i have seen 4 celbrities in total:

Mariah Carey (2 times) - I met her once in 2001 at a airport in LA. Best day of my life! Then i bought VIP tickets to her Charmbracelet tour and met her afterwards for about 15 minutes which was great!

Denise Richards - I met her about 6 months in London, she was in Debenhams and it took me a while to notice it was her, as i kept asking myself as why she would be in Debenhams,but it was her and i got her autograph.

Paris Hilton - I also met her not that long ago in London when she was launching her new perfume. It was funny!

Milla Jovovich - About 3 years ago she was on a Tv show over here called Graham Norton, and as shes one of my favourite actresses i waited outside for her and had a good old chat with her!