During my very brief stint as a promoter, I booked Rancid's first show outside of California, in Olympia, WA. They stayed at my house while they were in town and were mostly nice, especially Matt, whom I became friends with when I moved to Berkeley the following year.
One night (again in Oly) after a Fugazi show, I met Michael Stipe outside the theater and sold him a copy of my fanzine for fifty cents. My hair was green at the time and he said he liked it.
The only autograph I have ever asked for was Crispin Glover's, at the Olympia Film Festival in 1993.
Some friends and I went to a Green Day show in Seattle in 1993 and went backstage to hang out in their little dressing room. Eddie Vedder was playing one song with I think Bad Religion and he walked past the dressing room, looked in at all of us, and kept going. We laughed. The audience booed Eddie when he went out on stage.
In SF in the mid-90s, my friends in the band KARP were opening for Beck. They invited my roommate and I backstage, and we enjoyed a bunch of free food. Beck told me he liked my Orange Crush tshirt. He was incredibly short, probably around 5' 3".
A few years ago I went to the movies on a Wednesday night with my (ex)-bf. The theatre was pretty much empty, except for the tall and striking blonde woman in front of me in the concessions line, who turned out to be Sharon Stone.
Last spring I was walking near Union Square in SF after my French class and passed a theatre with a sign out front advertising Bebe Neuwirth's stage show. I wondered to myself what the show was about and if she was inside, and a few steps later looked up and saw Bebe walking toward me on the sidewalk. She of course looked fabulous.
A week or so after that I was out on my lunch break and saw a middle-aged blonde man getting out of a car just ahead of me. I recognized the voice and found myself totally gawking at James Spader.
I think those are the highlights of my brushes with fame.