Brian Wilson's friends and fellow celebrities, including Nancy Sinatra, are remembering the music icon in social media posts.

Carnie Wilson, the Beach Boys, John Cusack, John Stamos, Elizabeth Banks, and more paid tribute to Brian Wilson following the 'God Only Knows' songwriter's death: 'The world mourns a genius today.'

Still, there is something irresistible about Carl Wilson’s ethereal tenor, Brian Wilson’s unconventional instrumentation (including sleigh bells, French horns and harpsichord), the lyrics’ sweet sentimentality and the way the song seems to come unspooled in the middle before putting itself back together.