The Tommy Cooper of Singing
 

Tommy Cooper made a highly successful career out of messing up magic tricks his ineptitude was his trademark, and his bungling charm and enthusiasm won him legions of devoted fans.

Wagner has the same M.O. and I can see him with his own series on TV, showcasing big stage numbers, and dueting with the likes of Elton John:D
At the end of the day he is entertaining - and it's a bit rich of Cher, Katie and Cheryl fans to slate him for his singing when none of their idols can barely hold a tune.

paticuarly the cheryl fans.