Posh's secret track

Posh Spice has had a secret radio adventure.

Victoria Beckham's first solo single, "Out Of Your Mind," played on the U.K. station Radio One for the first time three weeks ago -- but the station wasn't allowed to say that it was the stylish Spice Girl's voice on the track, the Daily Mirror reports.

"Her people wanted see reaction to the track before revealing it was Posh with Truesteppers," an insider said.

-- AllPop