When Ryan Dunn was alive and doing that show "Room Raiders" my friend used to work on the show and actually was on an episode himself. He and Dunn became good friends after. He would invite us to MTV hosted parties, all the jackass guys would be there and other celebrity-ish people as well. Dunn would also go to our parties once in a while. Cool fucking dude RIP.
Tyler, The Creator- Skated with he and his dudes here and there back in the day. We're actually still cool, a few years ago he signed my friends band Trash Talk to (his label) Odd Future which was awesome.
Social Distortion- I do merch for them every time they do local so-cal shows.
Juninho from the LA Galaxy- He used to be a regular at my barbershop. He gave me a jersey and picture signed by all the players, which I framed and hung up. Also would always assign us tickets whenever we wanted to go. Really awesome guy. Unfortunately we sold the shop. Still takes the time to say what's up after games when he sees me and the family though.
And this last one I wouldn't call him "famous" but he's on tv a lot now...
Emanuel Newton- Bellator lhw champ. Friends since 03, and he's the reason I got hardcore into mma. Hands down one of the nicest people on earth.