Evan Agostini / Invision/AP 1 / 13
Evan Agostini / Invision/AP 1 / 13

Elton John regrets using drugs during his career as he "wasted such a big part" of his life.

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John was addicted to alcohol and cocaine and in 1975 he suffered an overdose, but he managed to turn his back on drugs in the 1990s.

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Now, he admits he wishes he had cleaned up his act sooner so he could have enjoyed his early success. In an interview with "Today" host Matt Lauer, he says, "I wasted such a big part of my life. I was a drug addict and self-absorbed. You know, I was having people die right, left, and center around me, friends.

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"And yet I didn't stop the life that I had, which is the terrible thing about addiction. It's that -- you know, it's that bad of a disease."

The full interview is set to air on "Today" this week.