The Beach Boys hold a special place in John Stamos' heart, and now he's sharing their music with his 3-year-old son, Billy. ET's Lauren Zima spoke with Stamos, who has performed on and off with the Beach Boys since 1984, about how much it still means to play with the band, over 30 years later.«Sometimes, I hit myself in the head with a drumstick. I'm like, 'I'm playing with the Beach Boys.