McDonald's is bringing back the most popular sandwich in existence, the McRib and this time you'll have an opportunity to earn a free one.

The Shave 4 McRib sweepstakes will be giving out 10,000 free McRibs starting tomorrow. Now let's all agree that is indeed a lot of rib sandwiches.

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So earning your free McRib is actually easier than you think. All you have to do is post a picture of your freshly shaven face on Twitter or Instagram and use the hashtag  #Shave4McRibSweepstakes and tag @mcdonalds in your post and that's it!

The first 10,000 people to put these photos up on social media will get hooked up with a McRib free code for McDelivery Through Uber. That means you don't even have to leave your house. I feel like we're getting closer and closer to the movie Idiocracy in real life. I'm not saying the end of intelligent people will be the direct result of fast food being more accessible. I'm just saying I'm gonna want my McRib in a bucket before you know it.

All jokes aside, the fast-food chain is partnering on the promotion with a nonprofit that raises money for cancer research and prevention. So this is a great opportunity to get hooked up with some free food. The promotion once again starts this Wednesday, so get fellas and ladies get to shaving those mustaches and start eating your free McRib!