John Mayer and Katy Perry looked on good terms 10 years after their breakup.
The exes sat close to one another at Sabrina Carpenter's concert in
John was placed in the row directly behind Katy, and the duo were spotted enjoying a cordial conversation as they waited for the show to start.
The two appeared to be catching up, with Katy placing an inquisitive finger on her chin as she listened to her ex chat away.
John and Katy dated from 2012 to 2014, and the songstress went on to begin a relationship with her now-fiance Orlando Bloom in 2016, with whom she shares daughter Daisy Dove, four.
John, who has previously dated the likes of Taylor Swift and Jessica Simpson, has more recently been linked to Kiernan Shipka.
Fans reacted to the former couple's close proximity at the concert online.
'Katy Perry & John Mayer in attendance for Sabrina Carpenter Short n' Sweet tour omg,' one wrote alongside a photo of Katy glued to her phone as John glanced away.
'John Mayer with Katy Perry's friends at Sabrina Carpenter concert,' one fan account captioned their video, which showed the woman sitting next to John leaning down to chat with Katy.
'On to more pressing matters, who sat LONG TIME EXES WITH A NASTY BREAKUP, Katy Perry and John Mayer, so close to each other? omg they look so uncomfortable. evil work,' another wrote.
'Seeing Katy Perry & John Mayer talking together at Sabrina Carpenter's show last night is like listening to Save As Draft vs Still Feels Like Your Man but in an alternative universe,' one fan lamented.
In 2017, John confirmed his song Still Feel Like Your Man was about Katy, with the rocker telling the New York Times: 'Who else would I be thinking about?'
John told the Times that writing the song about Katy was 'a testament to the fact that I have not dated a lot of people in the past five, six years.
'That was my only relationship. So it’s like, give me this, people.'
Meanwhile, that same year, while Katy was on a break with Orlando, she was asked by James Corden to rank the bedroom skills of her exes Mayer, Orlando, and Diplo - and she ranked Mayer as number one.
Meanwhile, Katy looked incredible as she joined fellow celebrities including Robin Thicke and Madelaine Petsch at Sabrina Carpenter's gig.
The singer flashed her legs in a gray lace minidress which she wore with thigh-high black leather boots.
