Robert Downey Jr., Justin Theroux and Nicole Bloom attend Olivia Rodrigo’s Concert in Philadelphia

On Friday, July 19, Theroux, 52, shared photos of himself and Downey, 59, at Rodrigo's GUTS tour show in Philadelphia, accompanied by Theroux’s girlfriend, Nicole Brydon Bloom.

(Image: justintheroux on Instagram Stories)

In an Instagram Stories post, Theroux posed with Downey in a parking lot on their way to the show. They were joined by Nicole, 30, and her twin sister, Ava, who were seen in the photo holding hands next to the two actors.

Theroux took another selfie with Downey while they sat in the packed seats at Philadelphia's Wells Fargo Center, waiting for Rodrigo to take the stage.

“Back in the city of brotherly shoves,” Theroux wrote over the photo, tagging Philadelphia as his location. He also shared videos of Rodrigo performing during the show.

Theroux and Downey share a long-standing friendship and have collaborated on several past projects.

Theroux co-wrote the 2010 Marvel film Iron Man 2, starring Downey, as well as 2008’s Tropic Thunder. In a 2014 interview with Details magazine, Downey revealed he introduced Theroux to his ex-fiancée Jennifer Aniston on the set of the film in 2007. Theroux and Aniston, 55, separated in February 2018.

Following the Friday concert, Theroux’s girlfriend Nicole shared a photo from her sister Ava’s Instagram Stories of the group meeting Rodrigo, 21, backstage. In the picture, Rodrigo is in the center, hugging a smiling Nicole, with Theroux and Ava smiling next to the singer.

Nicole also shared a photo of the trio at the concert, posing with their fists in the air and displaying their friendship bracelets, which are popular at Rodrigo’s shows. She included additional footage of the singer performing.

Theroux and Nicole first sparked romance rumors in February 2023. They made their red carpet debut together at Vanity Fair's annual Oscars party in March.

The couple’s concert outing follows their attendance at Naomi Watts and Billy Crudup's vow renewal ceremony in Mexico City on June 8. Theroux later shared photos of the event and of himself with Nicole at the celebration on his Instagram Stories on June 10.