TMZ captured pics of Sel walking into her home 10 minutes after the Biebz arrived in his white G-Wagon.
But we can confirm that it was not a ~romantic~ encounter as the former lovers were joined by friends and Selena's bae The Weeknd was fully aware of the occasion but did not attend as he's currently on tour.
Check out the pics riiiiiiight here.
The media outlet reports that they were at the house with their pals until at least midnight.
The pair recently started talking again after Selena's kidney transplant and rekindled their ~friendship~.
As you probz remember, the on-again-off again couple dated from 2011 to 2014, and have often spoken candidly about their dramatic AF relationship and have even written songs about each other including Selena's "The Heart Wants What It Wants" and Justin's "Sorry".
Despite all this, we're glad that these two can still be friends!