How do you send a letter to a musician, I want to send one to Roger Waters, how do I

[ZarakiKenpachi]

do this? My teenage idol is Roger Waters of Pink Floyd, I think his story is incredibly accurate about society and alienation from society, as described in his album The Wall, I'd like to let him know how important he is to me, and how I think he has inspired others. But I'd like for somebody to tell me how I can send him a letter.