Today is National Cheeseburger Day and McDonald’s is letting people get Double Cheeseburgers for just $0.50. You read that correctly, the new promotion sees the fast foot giant getting fans to jump at that massive discount. Basically, if you’re a part of the MyMcDonald’s Rewards program, you can access the deal. This is a part of the ongoing effort to get more users onto the app and the $0.50 discount is only available for first-time users. Still, that’s hard to pass up for anyone who’s not already using the rewards program. If you’re interested, you just open the McDonald’s app and sign up. From there, you can just order your Double Cheeseburger and vibe. You might not be aware that McDonald’s actually introduced that menu item as a promotional event back in the 1950s. But, after people loved it so much, they had to add it to the everyday menu in 1965. (It would be a second before it would make it’s way to the menu boards in restaurants though.)