If there's one person who knows how to party, it's definitely Jennifer Aniston. The Hollywood actress reportedly had an "epic" party to celebrate her 46th birthday with her closest friends recently.

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According to E! Online on Monday, Aniston apparently hosted a private bash at the Roosevelt Hotel in Hollywood with good friends Jimmy Kimmel, Courteney Cox, Malin Akerman, Amy Adams, Lake Bell, Tobey Maguire, Sacha Baron Cohen, John Krasinski and many more. Her fiancé, Justin Theroux, was also there to help her celebrate her big day.

A source tells the site, ""The party appeared to be over just before 1 a.m. in the morning. Jennifer and Justin left through a different entrance as the rest of the party grabbed their cars from valet."

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What's interesting is that there aren't any media reports confirming whether or not Aniston's good friend Chelsea Handler was there.

One person who definitely wasn't at the party was her ex-boyfriend Vince Vaughn, who just last week went on the record to say it was "difficult" to date the actress a decade ago.

According to In Touch Weekly on Thursday, Vaughn says that he still keeps in touch with his ex-girlfriend while explaining why they broke up back in 2006 after starring in the film, The Break-Up that year.

Vaughn said, "You know, she's great. For me personally - and I think most well-known actors who are together feel this way - I never enjoyed the paparazzi side of it. You like someone and you're spending time with them; that's separate and that was all fine. But I really spent most of that time finding ways not to be drawn into the attention."

Tags: Jennifer Aniston