newshour weekend's tom casciato has more >> reporter: it's not just his fans whoppreciate that graham nash is still going strong at 77. >> nice to be back. >> reporter: so does aham nash. >> at my age, it's nice to be anywhere. ( laughorr ) >> rr: but some of his rece shows might seem curious to those who know him only for his hits. live and learn t you're still learning. ♪ >> reporter: he has decades' awrth of chart-toppers to from... >> ♪ e iving me to rport. ♪ >> reporter: ...but he recently did shs featuring his lesser- known first two solo albums in wonder why.ety, and you have to there are certainly artists of your generation who go back and revisit their finest commercial moment if not their finest artistic moment. >> i want to be as real as possible. i'm coming to the end of my life. i'm 77 years old right now. how much longer can ts go on? i hope to be around for at least the next 30, 40 years, but i might drop dead in the middle of this conversation. >> reporter: with no time like the present to do it, nash kicks off the show with the opener from his first album, "songs for begin