Celebrity relationships don't have the best reputation when it comes to the long term. But these celebrity couples' long-lasting love will make you renew your faith. And when you've been together as long as these couples have, you'll have seen each other through some ups and downs (80s hair, 90s fashion, and 2000s lip gloss), but they've got the secrets to success. So, all you new couples out there wondering what it takes to keep the romance alive not just five years down the line, but 10, 20, 30, or even 50 years? Pay attention! Young Hollywood darlings especially – take notes!