From "Remember That Night: Live At The Royal Albert Hall" DVD
"Shine On You Crazy Diamond"
Remember when you were young, you shone like the sun.
Shine on you crazy diamond.
Now there's a look in your eyes, like black holes in the sky.
Shine on you crazy diamond.
You were caught on the crossfire of childhood and stardom,
blown on the steel breeze.
Come on you target for faraway laughter,
come on you stranger, you legend, you martyr, and shine!
You reached for the secret too soon, you cried for the moon.
Shine on you crazy diamond.
Threatened by shadows at night, and exposed in the light.
Shine on you crazy diamond.
Well you wore out your welcome with random precision, rode on the steel breeze.
Come on you raver, you seer of visions,
come on you painter, you piper, you prisoner, and shine!
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From WikiPedia ...
Syd Barrett had one noted reunion with the members of Pink Floyd in 1975 during the recording sessions for Wish You Were Here. Barrett attended the Abbey Road session unannounced, and watched the band record "Shine On You Crazy Diamond" — as it happened, a song about him. By that time, Barrett had become quite overweight, had shaved off all of his hair, including his eyebrows, and his ex-bandmates did not at first recognise him. Eventually, they realised who he was and Roger Waters was so distressed that he was reduced to tears.
Rick Wright spoke about the session, saying: "One thing that really stands out in my mind, that I'll never forget; I was going in to the "Shine On" sessions. I went in the studio and I saw this guy sitting at the back of the studio, he was only as far away as you are from me. And I didn't recognize him. I said, 'Who's that guy behind you?' 'That's Syd'. And I just cracked up, I couldn't believe it... he had shaven all his hair off... I mean, his eyebrows, everything... he was jumping up and down brushing his teeth, it was awful. And, uh, I was in, I mean Roger was in tears, I think I was; we were both in tears. It was very shocking... seven years of no contact and then to walk in while we're actually doing that particular track. I don't know -- coincidence, karma, fate, who knows? But it was very, very, very powerful". In the same documentary, Nick Mason stated: "When I think about it, I can still see his eyes, but... it was everything else that was different".