Jennifer Aniston, Brad Pitt
Brad Pitt was spotted at the venue of Jennifer Aniston's 50th birthday bash. Pictured: Jennifer Aniston and Brad Pitt attend the 56th Annual Primetime Emmy Awards on September 19, 2004 at the Shrine Auditorium, in Los Angeles, California. Getty Images/Kevin Winter

Did Brad Pitt actually attend ex-wife Jennifer Aniston's 50th birthday celebration? It has not been confirmed if the actor did wish his ex a happy birthday, but Pitt was reportedly spotted at the venue of Aniston's star-studded bash.

Pitt, 55, was photographed outside the Sunset Tower Hotel, where Aniston held a party celebrating her big milestone ahead of her Feb. 11 birthday, in Los Angeles on Saturday, Feb. 9, People confirmed. Photos taken of Angelina Jolie's estranged husband showed that he had his long hair slicked back underneath a cap as he arrived at the hotel.

An insider told the outlet that Aniston's 50th birthday bash had been attended by many of her celebrity pals. Among the party guests were George and Amal Clooney, Reese Witherspoon, Kate Hudson, Ellen DeGeneres, Jennifer Meyer and Demi Moore.

Aniston's ex John Mayer, his former girlfriend Katy Perry and Gwyneth Paltrow, who is another one of Pitt's exes, reportedly also attended the festivities.

A source with knowledge of Pitt and Aniston's relationship previously told People magazine that the exes, who tied the knot in 2000 and parted ways in 2005, had long gotten over each other.

The two reportedly maintained a friendly relationship, but the insider said they had never been close again after breaking up. “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,” the source told the outlet following Aniston's split with Justin Theroux in February 2018.

Meanwhile, this sighting comes after many reports surfaced over the past few weeks speculating about Aniston's personal life as she turns 50. One tabloid claimed that Aniston was desperate to get a new man before her upcoming milestone, while another report speculated that she may get plastic surgery.

However, it seems Aniston may not actually be bothered about turning 50 years old. A source told Us Weekly that contrary to rumors, the "Friends" star "is feeling great" about her birthday.

“She’s not worried about the number 50,” the source said. “She feels like life gets better with age and she isn’t looking back. The older she gets, the more comfortable she is in her own skin. She’s in a good place and happy.”