The 23-year-old entertainer was spotted by fans in the audience and also took photos with some people backstage.
Watch the fan video below!
According to E! News, the couple is “talking” about getting back together.
“[Selena and Justin] looked genuinely comfortable together. They both looked really happy,” a source told the site about them hanging out in his dressing room.
Meanwhile, Justin shared a throwback photo of the couple kissing a few days earlier.
Click inside to see more photos of Selena Gomez at Justin Bieber’s show…
Selena Gomez Attends Ex Justin Bieber's L.A. 'Purpose' Show
Source: Just Jared