Demi Moore must be smiling.

The actress, who in 1991 shocked the public by appearing nude in her seventh month of pregnancy on the cover of Vanity Fair magazine, has since seen a parade of other celebrity expectant mothers pose in their birthday suits.

This time it’s Christina Aguilera, who is expecting her second child and who stripped down for a sexy shot for V Magazine.

The father of the child is her fiancé Matt Rutler.

"As a woman, I'm proud to embrace my body through all stages of life, staying fearless and confident in surrendering to the unknowns the future has in store," said Aguilera to the magazine.

The singer-actress, and judge on the television competition show “The Voice,” hired photographer Brian Bowen Smith for the spread, according to US magazine.

Smith "wanted to capture some blissful moments before she gives birth," the magazine said.

Moore’s iconic photo was the work of legendary photographer Annie Leibovitz, who has shot numerous celebrities.

“The shot that ended up being on the cover wasn't even done for the magazine," Moore said to V magazine in '08. "Then [photographer] Annie [Leibovitz] called, we kind of joked, and I said it would be amazing if they would do this on the cover."

This isn’t the first time an expectant Aguilera shed her threads for public consumption.

In December, 2007, Aguilera, who is 33, posed nude for Marie Claire magazine during her first pregnancy.

Aguilera’s first child is 6-year-old son Max, whom she shares with ex-husband Jordan Bratman.

Others who have appeared in photos nude while pregnant are Brooke Shields, Britney Spears, Katie Holmes and Angelina Jolie.

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