Singer Graham Nash is working harder in his 60s than he ever has before - because he's terrified of dying before he achieves all his ambitions.

The 66-year-old Crosby, Stills and Nash singer claims he struggles to sleep because of his burning desire to make new music.

He explains, "I'm not a great sleeper. My brain just continues to move. I find it very difficult to sleep at night and calm my mind down. I have so many ideas. With all due respect, I'm 66. How much longer have I got? Ten, 20, 30 years? I've got (stuff) to do, man."

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(This news article provided by World Entertainment News Network)