Several. I used to work in catering, so we had a lot of bigwigs at partys we would do. I met Bill Cosby before a show (SUPER nice guy), Roy Orbison, Tommy Lasorta, Dick Vitale, Bob Hope, Abe Vigoda (in Las Vegas-- he sat at the table next to us at a show, and he was flattered that I recognzied him (I guess nobody knows who he is anymore )). There's been a bunch of others, but the highlight I'll always remember was meeting Jimmy Page in Detroit in 1988. We went to a bar after one of his shows and he showed up unannouced. I was able to exchange a few sentances back and forth because (again) nobody knew who he was. He broke a sting during "Over the Hills and Far Away", and it knocked his whole guitar out of tune, but he kept on playing. I mentioned that and he said something like "Aw- Bloody 'ell, I thought nobody would notice. Was it bad?" I told him that he still sounded great, then he told me about a secret that if you break a string, you can usually move everything up a fret to keep in tune. Cool!