A celebrity stalker repeatedly jailed for targeting singer Anne Murray over two decades has vowed to ask the Canadian Supreme Court for help.

Farmer Robert Kieling, 55, wants the judges to lift lower court rulings prohibiting him from contacting the Toronto-based singer.Kieling, described as seemingly intelligent and normal aside from his obsession with Murray, suffers from a delusion that the pair has had a longtime secret affair.

Earlier this week, an appeals court in his home province of Saskatchewan refused to overturn his earlier convictions or lift the prohibitions.