Nicole Kidman displayed her ageless beauty as she stepped out of the Noel Coward Theatre following her performance in "Photograph 51."

"Nicole looked chic as she left the theater, donning a long, black coat with a coordinating top and fitted black trousers," said Daily Mail. "She coupled the sleek look with a pair of pointed toe black heels, and carried a large, black leather handbag."

"She wore her long, blonde tresses in a center part, and pulled back into a ponytail, and sported natural makeup," it added.

This marked the second time that the age-defying Nicole Kidman graced the London stage after performing in "The Blue Room" in 1998.

In "Photograph 51," Nicole Kidman plays Rosalind Franklin, the DNA scientist who was ignored by history books as scientists Maurice Watkins, James Watson and Francis Crick were credited for the discovery, which earned for them a Nobel Prize.

The Daily Telegraph reported that Nicole Kidman's West End return was received well by the audience and critics alike.

"More than 17 years after she last trod the boards in the West End, Nicole Kidman has made a triumphant return to the London stage with a standing ovation for the first night of her new play," it said.

Her successful West End return came on the heels of the rumor that Nicole Kidman's age-defying secret can be attributed to botox.

According to the recent issue of OK! Magazine, Nicole Kidman allegedly introduced Keith Urban to botox and now the "American Idol" judge is hooked.

The tabloid claimed, "Keith finally started feeling his years, so he decided to try it for himself. He is getting Radiesse fillers, because he's determined to keep that baby face his female fans love."

Their friends are also worried about their botox obsession, according to the magazine, however nobody is saying anything because the issue is "too awkward to bring up."