Victoria Beckham has basically sworn off a Spice Girls reunion -- though she says it's quite tempting. Her biggest problem? She can't sing!

Check out her new interview with Andy Cohen and John Hill on SiriusXM’s "Andy Cohen Live" -- Posh Spice confirms she doesn't want to be on stage with her girls Mel B , Melanie C , Emma Bunton and Geri Halliwell anymore ... but admits it's an alluring thought. Getty

However, she admits her biggest problem is she doesn't think she can sing anymore ... and says she was never that great to begin with!

You know what they say ... you're your toughest critic. Gallery Launch Gallery Getty

Victoria last made a formal appearance with the Spice Girls at the London 2012 Summer Olympics closing ceremony.

And to fans' pleasure, the q

See Full Page