Brian Wilson co-wrote this with Jeff Lynne of the symphonic rock group Electric Light Orchestra. The pair penned the tune at Wilson's house in Malibu right by the seashore – it is instantly recognizable as both a Wilson song and a Lynne song.
Jeff Lynne recalled the collaboration to Uncut in 2016: "I really enjoyed doing the sessions. I remember fixing the bassline, which went from the highest letter on the grid right down to the bottom E or A string, and he walked in while I was doing it. He stared at me and said, 'That's the longest goddam bass string I've ever seen!' I was quite pleased with that."