The "Sign of the Times" singer performed his final show from Harry Styles: Live on Tour in Los Angeles on Saturday.
It was a star-studded event, as other celebs including Meghan Trainor and Shawn Mendes were all in attendance.
A fan captured video of Kendall cheering Harry on alongside celebrity hairstylist Jen Atkins. The clip shower her applauding him in a midriff-baring top.
Could these two be getting back together though? Rumors started swirling late last week that the former couple reunited in Idaho as they were staying at the same resort.
Harry has been spending his off days from tour at a resort there, where he was photographed a day before Kendall arrived. Although the two are reportedly dating other people (Kendall with NBA star Ben Simmons and Harry with model Camille Rowe), fans couldn't help but notice the coincidence of them being there at the same time.
Do you think there is a potential romance brewing again between Harry and Kendall? Sound off in the comments!