I heard CS&N in NYC about 1.5 years ago, they were still able to sing, they surprised me in a very positive way, was a concert highlight for me.
CSNY Live 1974
In the never ending pursuit of new tunes, I was pleased to read about a 4 cd/dvd box set scheduled for release in July from CSNY. It captures 40 unreleased songs from their 1974 tour- 2 electric discs and 1 acoustic. Graham Nash produced and said that it took him four years to get everyone to agree on the songs and to meet Neil's demanding sound quality standards. Not to mention that it was early enough in their careers that they could all really sing.