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Madonna Passing Torch to Daughter?

Madonna's 12-year-old daughter, Lourdes, joined the Material Girl onstage in the closing concerts, in Israel, of the pop star's "Sweet and Sticky" tour.

And that has tongues wagging.

The tour was a commercial success, reports CBS News Correspondent Elizabeth Palmer.

Promoters say it pulled in $408 million, which would make it the highest grossing tour ever for a solo artist.

And, says Palmer, putting aside talk that Madonna relied on extra dates in large venues to pull in those returns, there's no question the Queen of Pop is now well into middle age -- as British tabloids like to underline.

Madonna's next video might showcase her new 22-year old boyfriend, but it also features her soon-to-be-teenaged daughter.

In pictures circulating on the Internet, Lourdes recreates Madonna's wedding look, right down to the painted-on beauty mark, made famous a full 25 years ago.

"It could have been one of two things," Katie Nichols, entertainment columnist for the Mail on Sunday newspaper, told CBS News. "It was either Madonna bringing Lourdes in to say, "Right, well, this is a slice of it, enjoy it, but get back to work afterward,' or perhaps it was Madonna showing us, actually, 'This is the person you're going to be seeing more of ... and maybe you might be seeing less of me.' "

For now, though, Palmer points out, fans will be seeing plenty of Madonna in her new release, "Celebration," due out at the end of the month.