"I'm certainly not using this as a springboard to launch any sort of solo career, you'll be glad to hear," she said.

Citing the 1997 movie "Spice World," which followed members of the pop group, Beckham gave her acting a bad review.

"I really wasn't that good," she said. "I must be the only person in L.A. that doesn't want to be in films."

But she still wants to sing.

The Spice Girls tour is set to open Dec. 7 in Los Angeles, reuniting the five-member girl group that sold millions of records in the 1990s before breaking up in 2001. A greatest hits album with a couple new songs will be out in December. The women now have seven children between them.

"I want my kids to see Mommy on the stage doing what I used to do and I want David to see it again," Beckham said. "David is going to come on tour because it starts when his football ends."

If you think you know Posh from reading the tabloids, she says forget it.

"People can have preconceptions because of the photographs that they see of me, because of some of the stories that they read about me as well," she said. "A lot of the time it couldn't be further from the truth. We're so used to having things written about us that aren't true."

Case in point: Beckham denied an item in Sunday's Los Angeles Times that said her husband gifted her with a $1.8 million diamond-encrusted sex toy when their third son was born.

"I can honestly say that is not true," she said, laughing. "We do buy each other nice things, but it's never as extravagant as people make out."

And she has a warning to paparazzi gearing up to stalk the couple.

"We're going to be quite low-key," she said. "There are people that are much more famous in L.A. than David and myself. We're not out every night. We're probably a lot more boring than people think."

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