United Kingdom, March 31 -- Sir Elton John has been thinking about how much he "doesn't want to die".

The 78-year-old pop legend - who is married to David Furnish and has Zachary, 14, and 11-year-old Elijah with him - teamed up with Brandi Carlile to write the track 'Never Too Late', which is about his relationship with longtime collaborator Bernie Taupin, and noted that he "isn't sentimental at all" but has considered his mortality in recent times.

Speaking on 'CBS News Sunday Morning', he explained: "It's a song that's just as much about Bernie as it is about me. It's about both of us and how wonderful our love and friendship has been and our songwriting, what we've done and what we've achieved.

"I can't imagine my life without him i...