Right is Cool !

John Lydon, Van Morrison and Eric Clapton are the only three 'Punks' remaining in the music scene.

I wouldn`t wish to disagree with you whybotherbear44, but I think "Johnny Rotton" is the only one of the three people you mentioned who can truly be called a "punk". And who still is !

Disagreement is healthy
Van and Eric are anti establishment, which is the essence of Punk, no?

Eric isn`t anti-Establishment ! Van Morrison - some I`d say.

Eric ain't screaming 'get the jab' like all the rest of them, is he?