Believe it or not, one of our favorite high schoolers of all time -- Jason Priestley, aka Brandon Walsh from "Beverly Hills, 90210" -- turns 43 today!
You know, in case you were starting to feel young.
The Canadian actor, who made sideburns all the rage in the '90s, is still as handsome as ever, now married with two kids. Aww.
Jason recently reunited with his "90210" costars Luke Perry (Dylan), Jennie Garth (Kelly) and Gabrielle Carteris (Andrea) in some tongue-in-cheek ads for Old Navy, and we have to say, we love seeing the old gang back together!
Click "Launch Gallery" above to see shots of all your favorite "Beverly Hills, 90210" cast members then and now, and watch the Old Navy "Why Choose?" ad with Jason, Dylan and Jennie below!
Happy Birthday, Jason!