"Happy birthday (last night and tomorrow) to #jenniferaniston our ray of sunshine, example of perpetual goodness", Paltrow wrote. Somewhere out there, we hope the former "Friends" star is sipping some bubbly and toasting her 50 years on this planet.
Despite various reports about whether Pitt and Aniston are still friends, his appearance at her party put the rumours to bed once and for all.
"I don't have time to get her a present".
Pitt and Aniston were in a six-year relationship until they divorced in 2005. "He came to support her, spoke to other friends of his that were there and headed out", the insider says.
She loves to show off her yoga-honed physique - and she should! Yesterday she celebrated with a star studded party in LA, with friends including Barbara Streisland, Kate Hudson and Brad himself, who was seen making a low key arrival. "But the friendship is shifting and changing, you know, so that part is something that we're both very proud of".
It added that Pitt's former girlfriend Gwyneth Paltrow, and Aniston's ex-boyfriend John Mayer were also at the party. "If something comes up like a birthday or a big occasion they will reach out and congratulate the other", the source explains.
The two separated at the end of 2017.
He went on to marry Jolie in 2014, while Aniston married actor Justin Theroux in 2015.
When Aniston split from Justin Theroux - her partner of seven years and husband of two - it took the 47-year-old actor several months to address their breakup. "We are two best friends who have made a decision to part ways as a couple, but look forward to continuing our cherished friendship".
'My marriages, they've been very successful, in personal opinion.