My friend did weed with Pink Floyd :u
Ahh... I went to a Santana concert... does that count?
If not, then none...
The wife of my above mentioned friend dated the bassist of Santana.
I got to play Alice Cooper's guitarist's guitar, and I met Drake Bell.
That's all I can remember, anyway. My dad met the lead singer of Styx though, and my above mentioned friend used to be the president of Island Records so he met a ton of bands.
My other friend went to high school with Maroon 5, when they were called Cars And Flowers.