She's one of the most gorgeous actresses in Hollywood, but it now looks like there's a secret behind to her beauty. Media outlets are speculating that Jennifer Aniston might be getting botox after showed off a much "tighter" and smoother looking features during her appearance on the Graham Norton Show on Saturday.

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According to the Daily Mail, Aniston's new look caused somewhat of a reaction on Twitter, with many fans questioning whether or not the 45-year-old beauty has gone under the knife or if she is getting botox injections.

Some of the comments included, "I love Jennifer Aniston a lot but why does her face look so weird," along with, "Oh my god BIG let down Jennifer Aniston has had Botox or a face lift," and "Did Jennifer Aniston really have to have that botox on her face/ Surely would have looked better just her natural self."

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During this summer, Aniston made it clear that she would never get botox or plastic surgery on her face.

Aniston, who opened up about her beauty regime to Yahoo back in August, says that Theroux would take to extreme measures to make sure she would never "mess with her face."

"There is this pressure in Hollywood to be ageless," Aniston told the site. "I think what I have been witness to, is seeing women trying to stay ageless with what they are doing to themselves. I am grateful to learn from their mistakes, because I am not injecting s--- into my face."

So far, Aniston herself has not made any comments regarding the botox rumors.

Tags: Jennifer Aniston