SIR Elton John fears gay marriage will be banned in his partner David Furnish's native Canada, by new less-liberal Prime Minister Stephen Harper. John - who 'married' Furnish in a same-sex civil union last year (05) - expressed his concerns at a concert in Toronto last week (ends11NOV06). Referring to Conservative Harper's replacement of Liberal party leader and former PM PAUL MARTIN, the singer said, "It would be such a shame because Canada is such a needed voice of tolerance in the world."