Other stars in attendance included Pitt's former fiancee Gwyneth Paltrow, Aniston's ex-boyfriend John Mayer, his ex Katy Perry and her current boyfriend Orlando Bloom, along with George and Amal Clooney, Barbra Streisand, Jason Bateman, Robert Downey Jr., Ellen DeGeneres, Kate Hudson, Laura Dern, Demi Moore, Aniston's formers "Friends" co-star Lisa Kudrow and Reese Witherspoon.
She also said at the time that, with Pitt, there was "a sensitivity chip that's missing" after he appeared pre-split in a WMagazine feature with Jolie that showed them as a 1960s married couple.
Brad, who has been reportedly dating Charlize Theron since January, arrived solo at the bash. "She had some family there and seemed very happy to be with so many good friends".
Alicia Keys Promises Peace Will Reign At Female-Focused Grammys
The awards bash struck a sour note past year when only one woman, Best New Artist Alessia Cara , won in a major category. Grammy winners Yolanda Adams , Fantasia and past Grammy nominee Andra Day will honor the legendary Aretha Franklin .
"She's having a party".
Brad attended the bash alongside a host of celebrities.
However, a source said: "They aren't in regular contact, beyond an occasional text back and forth to wish each other the best when there's been a new project or big event".
Pitt and Aniston were married from 2000 to 2005.
Kylie Jenner & Travis Scott Go All Out For Stormi Webster’s First Birthday!
Jenner recently made headlines after she was spotted sitting next to Simmons' mother , Julie Simmons, during a game against the Houston Rockets.
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".
2018 was the fourth warmest year on record
Record levels of man-made greenhouse gas emissions, mainly from burning fossil fuels, trap ever more heat. The warmest year was 2016, followed by 2017, 2015, 2018 and 2014, according to NASA's rankings.