The "famous" musicians I have met are mostly Contemporary Christian Music (CCM) artists so most of you have never heard of them.
I've met and talked personally with Dennis Jernigan, independent label and CCM artist. I've also met Stephen Curtis Chapman, he's a huge CCM artist who has won several Dove awards. I've met all of Sonic Flood, or at least who Sonic Flood was at the time. they have changed band members a lot. only the lead singer is the one who stayed from the beginning (sort of). I drove them around Ft. Worth, to and from hotel room to concert venue and to guitar Center, and dinner, etc.