The two were spotted at the Bel Air Hotel over the weekend. The timing for the public outing seems convenient considering it comes amid Angelina Jolie's reunion with her first ex-husband Jonny Lee Miller.
A tipster caught Pitt and Stelly allegedly together on Saturday, writing into the pop culture site Deuxmoi.
The subject was labeled, "BRAD PITT on a date?" The insider provided details of his one-on-one with Stelly, who ended her romance with Pitch Perfect actor Skylar Astin just last month.
"99% sure I saw Brad Pitt with Lisa Stelly (Skyler Astin's ex gf/Jack Osbourne's ex wife) at Bel Air Hotel restaurant last night," the tipster wrote. "They walked in quickly and were seated at a private booth in the back so I only got a quick glance."
Stelly tied the knot with Osbourne in 2012. She filed for divorce in May 2018 just three months after welcoming their third child. They finalized their divorce in 2019 and share three kids together — Pearl, 9, Andy, 6, and Minnie, 3.
Stelly went Instagram official with Skylar in July 2020. Despite being together for a year, their relationship didn't last. It was revealed they ended their romance in September, but there are no hard feelings.
"They're both so busy, but there is no drama between them at all," an insider told PEOPLE, adding, "They still love and support each other a lot and it's definitely hard for both of them."
As for Pitt's ex-wife, Angelina made eyebrows raise when she reunited with her first ex-husband earlier this month.
Angelina married the British actor in 1996. Their marriage didn't last long. Angelina and Miller divorced in 1999.
She went on to marry Billy Bob Thorton from 2000-2003 and Brad Pitt from 2014-2019. Angelina is currently still caught in a nasty custody battle with the latter.