I can't count people like Joan Baez, Paul McCartney, and Barbra Streisand as "old," since they're all approximately my age.   ;D

But a few who are at least a few (5 to 15) years older than I and still going strong are Miriam Makeba, Leondard Cohen, Eartha Kitt, Harry Belafonte and Lena Horne (I think Lena's still singing).   Of course, Chet Atkins kept on playing that guitar (amazingly) right up to the end, and wasn't he about 80 when he went to join that angel band?

Wasn't Marijohn Wilkinson (sp?) over 80 when she passed away, not long ago, and wasn't she still active in music till then?