In clojure, the comment character is ;. clojure-mode syntax highlighting + color scheme greys comment text out.

I want emacs to color lines that begin with ;-; with a different color.

For example:

;; This is a normal greyed out comment, we use ;; by convention for blocks.
;  This is a typical grey inline comment, we use ; by convention.

;-; This is recognized as a comment and is normally greyed out.
;-; I want emacs to recognize this as something a little different and give
;-; it a different color.

How can I achieve this?