The reunion was put on by FWB Charity Events, gave us a wave of nostalgia that we will forever cherish. Is it possible that they've all got better looking with age?
See for yourselves.
Notably absent was, of course, Sophia Bush, who was once famously engaged to Chad Michael Murray, only for it to go up in FLAMES.
But she still showed her support on social media, reposting Hilarie's photo of their Maxim cover on her Instagram Story which Hilarie captioned, "Brooke and Peyton were endgame." Sophia added, "Wife for life @HilarieBurton."
Bethany Joy Lenz was also absent from the reunion, but she commented on a photo of Chad, Hilarie and James Lafferty saying: "Wish i could be there!!!"
Good news! You can relive all the glory of your fave episodes of One Tree Hill, here, where they're all free to watch online at the 7plus site.