Jennifer Aniston’s starry 50th birthday bash on Saturday in LA was filled with exes.
Guests included her ex-boyfriend John Mayer and ex-husband Brad Pitt, plus Pitt’s ex-fiancée Gwyneth Paltrow.
Other former couples at the party included Katy Perry and Orlando Bloom.
But one ex who wasn’t there: Aniston’s more recent hubby, Justin Theroux.
He and Aniston split up a year ago, just after her 49th birthday.
Instead, spies saw “The Leftovers” star having a “guys’ night out” at New York Fashion Week on Friday — with Liev Schreiber, Oscar Isaac, “Get Out” star Lakeith Stanfield, record producer Nigel Godrich and indie director Benny Safdie.
The dudes were at an after-party at 1 Hotel Brooklyn Bridge for Rag & Bone’s show.
A spy said, “Schreiber and Theroux never left each other’s sides” at the hotel’s 10th floor Brooklyn Heights Social Club.
On Sunday, Theroux was spotted at another NYC fashion bash, for Opening Ceremony.
On Monday afternoon, he posted a pic of Aniston on Instagram with the caption, “Happy Birthday to this fierce Woman. Fiercely loving. Fiercely kind . . . and fiercely funny.”