I can't say for sure as it was 43 years ago and I was only a kid at the time. I know he came on with the shades but do not know when he tossed them. It was my first concert and what a way to start! No other concert has come close to how good they were that night. That's not to say I have not been to shows with better sound and mixing. When I saw Don Henley in 89' in Chicago, wow, now that was the best sound I have ever heard at any show. What was wild was the volume was not loud, I was having conversations at normal vocal levels off and on during the gig but every note was crystal clear, the sound just enveloped you. Don't know who produced that show, the soundboard people, engineer but they are the tops. And the acoustics were perfect. It was a small-medium venue (the UIC Pavilion), only 9,500 people at max capacity but part of the place was curtained off so there were about 5,500 people there that night.