For the unversed, Aniston was married to Brad from 2000 until 2005, and later, she dated Mayer from 2008 until 2010.
For her part, Jennifer Aniston apparently didn't provide any special attention to her ex-husband.
TMZ reports Aniston's celebration was actually Saturday night, at the Sunset Tower Hotel on Sunset Strip, where's she's a regular at their restaurant for their chicken salad. Sources reveal that Brad and Jen are definitely not in the path of dating each other.
"He was invited, so why shouldn't he go?" the source said. The star of the "Friends" was 50 years old Monday and many celebrities shared their wishes online. However, they added Pitt didn't stay long: "He came to support her, spoke to other friends of his that were there and headed out". They divorced in 2005 after Pitt was linked to his Mr & Mrs Smith (2005) co-star Angelina Jolie. "Fiercely loving. Fiercely kind.and fiercely amusing. you B".
"Happy Birthday to this fierce Woman", he wrote along with some pretty "fierce" adjectives to describe his once upon a time ladylove.
Before this party. brad and Jennifer were last seen together in public 15 years ago.
Pitt and Jolie split in 2016, while Aniston and Theroux announced their separation in February past year.
Other attendees included Katy Perry and Orlando Bloom, George and Amal Clooney, Pharrell Williams, Gwyneth Paltrow, Lisa Kudrow, Courteney Cox, Barbra Streisand, Reese Witherspoon, and Robert Downey, Jr. - just to name a few. "Neither of them is pining for each other but instead, finding themselves again".