Single moms are superheroes. They do everything that parents want to and don't want to do without any backup. There's ample opportunity to celebrate them on Mother's Day and heartfelt social media tributes are plentiful on that holiday, but if Mom's doing double-duty and filling the role of two parents, shouldn't we celebrate her on Father's Day, too? If you are looking for the perfect Instagram or Twitter accolade, there are some great Father's Day memes for single moms you can share, to show your mom how much you appreciate her subbing in for her kids' dad.

Although Mother's Day is often filled with construction paper cards, homemade gifts, flowers picked from the garden, and lots of love and appreciation from her kiddies, some kids want to acknowledge their moms on Father's Day, too. Father's Day greeting cards for moms have gained popularity. Hallmark, has long carried "Happy Mother's Day, Dad" and "Happy Father's Day, Mom" cards, Kristi Ernsting, a Hallmark spokesperson told The Grio.

But not everyone is not celebrating their dad on Father's Day because their mom has to pick up the slack when their father won't — in some cases, they can't. Stevie Rowling-Parker lost his dad when he was five years old. He was raised by his mum (he's from the United Kingdom, hence the "mum") and according to Metro News, he wanted to create a line of cards to celebrate single mums. Thus, his company Happy Father's Day Mum was born. One of his popular cards is "Who Needs a Dad When Your Mum Has Balls?"

Here are the social media tributes to the women who took the situation they were handed and hugged, loved, and parented those kids in an effort for them to not feel the absence of their dad. On a day that's technically all about the dads, it's nice to see the double-duty mamas getting the shoutouts and kudos they deserve.