George Michael performs live in concert at Madison Square Garden in New York City, New York City, USA - 23.07.08
The pair was rumoured to be teaming up for the singer's retirement shows - dubbed The Final Two - and would be one of a "series of surprises".
But Michael's spokesperson denies the rumours, insisting the star has no plans to grace the stage with Ridgeley.
The representative tells Britain's Daily Mirror newspaper, "We don't know anything about it."
The singer is currently on his final tour of the U.S., after insisting he is "too old" to plan any future arena gigs.
Source: WENN