Elton John, who has been sober since 1990, believes marijuana never shouldve been legalized.

I maintain that its addictive, he said in a newinterviewwithTime,which named him Icon of the Year.

It leads to other drugs.

Elton John

Elton John weighed in on drug policy and more in a new interview with Time.Bruce Glikas/Getty Images

And when youre stoned and Ive been stoned you dont think normally.

Legalizing marijuana in America and Canada is one of the greatest mistakes of all time.

I just think its just gonna take time, right?

Its a shame for everyone who put so much work in it, he said.

But thats what happens when you take a chance … Its a fairly political piece of work.

And with that, you have to press somebodys buttons.

The buttons we pressed last night with the critics werent the right ones.

John also explained why he turns down invitations to be a judge on talent shows.

His music has been able to soundtrack my life from the very beginning.

In the story, John offered a harsh assessment of his late mother.

She was probably one of the biggest liars Ive ever met, he said.

But thats because she was a sociopath, and I got to understand it.