The Daily Mail has a video of Pitt's supposed arrival, so you can decide for yourself if he showed up to help celebrate his ex-wife's 50th birthday in style.
Aniston threw a massive party at the Sunset Tower Hotel in Los Angeles, California on Saturday night.
While the presence of Pitt - who divorced Aniston in 2005 after five years of marriage - will no doubt fuel rumours they're rekindling their romance following his split from Angelina Jolie and her divorce from Justin Theroux, a source told People last year that the two are just friends. "We all love you sooo!"
"Basically, every single person who Jen loves attended", the source said.
A good time was reportedly had by all, given Reese Witherspoon ended the night falling down the stairs, which means it was a ripping party by anyone's estimation, even those who happen to be mega-wealthy Hollywood A-listers.
Jennifer Aniston's birthday celebration was quite the A-list affair.
Paltrow also wished her dear friend a "happy birthday".
"Our ray of sunshine, example of perpetual goodness". "We love you so much and you make 50 LOOK [fire emoji]". Pitt then went on to marry Angelina Jolie, while Aniston Wednesday Justin Theroux.
Speaking to The New York Times, Theroux revealed that it was "the most gentle separation, in that there was no animosity". "I really don't", the Dumplin' star explained.
She said: "I don't feel a void". And when they came to an end, it was a choice that was made because we chose to be happy, and sometimes happiness doesn't exist within that arrangement anymore.