According to a close source, "someone extended the invitation to Brad to come to Jen's party and he accepted".
"Last night celebrating our attractive Jen ❤️❤️", she wrote.
The source continued, "Brad, for long, was a very important part of Jen's life".
"Happy birthday (last night and tomorrow) to #jenniferaniston our ray of sunshine, example of perpetual goodness", Paltrow wrote.
"Pitt made a casual entrance to the hotel where Aniston's party was being held." the medium reported. "They hugged and chatted for a bit, but Jen was busy making sure all of her other guests had an fantastic time".
Thailand drops extradition proceedings against refugee footballer
She said she requested his release on bail but it was denied because the court deemed him a flight risk. He says he faces torture if returned to Bahrain.
The medium said there were no reports of Pitt and Aniston mingling throughout the evening, though.
"Love these ladies", Hudson wrote. "We love you so much and you make 50 LOOK".
Jennifer, who split from Justin Theroux in 2017 after two years of marriage, recently opened up about her past relationships, and insisted she would never stay in a troubled marriage for fear of being alone.
"Sure, there were bumps, and not every moment felt fantastic, obviously, but at the end of it, this is our one life and I would not stay in a situation out of fear".
Speaking to People, an insider revealed that Aniston allegedly "debated" whether or not to invite him, but in the end was happy that she did.