On this day in 1975, Syd Barrett made a surprise appearance at a Pink Floyd 'Wish You Were Here' mixing session. He arrived overweight, with shaved hair and eyebrows, and silently observed as the band worked on "Shine on You Crazy Diamond," a song dedicated to him. Without uttering a word, he departed, leaving his former bandmates initially unable to recognize him due to his drastically altered appearance. It marked the final encounter between them.