Released as the on the Surfin’ Safari’ album in 1962 and on the Little Deuce Coupe album in 1962, 409 is written by Brian Wilson, Mike Love, and Gary User. Wilson says:
We had a music room that used to be a garage. My dad turned it into a music room. It didn’t turn into a music room until I was about 14. We had a jukebox in there and there was a piano and a Hammond B-3 organ in there too. Gary (Usher) and I worked in that music room. He was on guitar and I was on piano and we wrote 409 and In My Room.