They're notorious; they're infamous; they're in love—still.

Who ever thought that Heidi Montag and Spencer Pratt would be one of the most resilient marriages in Hollywood? Not us! But that's exactly what Speidi is—an all-blonde, fame-loving force of nature that has defied the odds, falling in love in a (sometimes) hopeless place: the world of reality television.

America first met the towheaded couple back in the party-till-you drop days of MTV's The Hills. Hopping from reality show to reality show, the twosome have been on more than one wild ride over the last decade.

The duo has once again been making headlines now that they are the proud parents to one-month-old Gunner Stone Pratt. After the birth of their wee one, these two are seemingly more in love with each other than ever—if that's even possible. 

Earlier today, Mrs. Pratt took to Instagram to gush over her baby's daddy: "Happy 9 year anniversary! It was love at first sight. I knew my life would never be the same. You are my soulmate, my heart, my soul, my best friend, my everything. We have fought through so much to be together. Every moment of it has been such a blessing."

And every moment of Spencer and Heidi's love is a #blessing for us all...

Happy 9 year anniversary! It was love at first sight. I knew my life would never be the same. You are my soulmate, my heart, my soul, my best friend, my everything. We have fought through so much to be together. Every moment of it has been such a blessing. I knew I had to follow my heart and have faith in love and in you. Best decision of my life. Thank you so much for our son! This is been the best 11 years of my life. It continues to get better every moment, every day, every year. I love you more than I’ll ever be able to tell you! I didn’t think our love could get deeper until @gunnerpratt arrived! Not only are you the most amazing husband, you are the most amazing father! I can’t wait to see the journey life has in store for us!

A post shared by heidipratt (@heidipratt) on

In Heidi's post, the new mom added, "I knew I had to follow my heart and have faith in love and in you. Best decision of my life. Thank you so much for our son! This is been the best 11 years of my life. It continues to get better every moment, every day, every year."

The 31-year-old added, "I love you more than I’ll ever be able to tell you! I didn’t think our love could get deeper until @gunnerpratt arrived! Not only are you the most amazing husband, you are the most amazing father! I can’t wait to see the journey life has in store for us!"

Spencer and Heidi were married on April 25, 2009 and have been together since 2006, so it's unclear exactly what kind of anniversary they are celebrating. But who cares?! The more Speidi love the better for all in these troubled and trying times.

From wearing pumpkins on their heads for a day at the beach to martial arts dates and traditional wedding day pics, Spencer and Heidi have proven their marriage can withstand the test of time.

Check out their headline-making relationship in photos...

Spencer Pratt, Heidi Montag

Donato Sardella/WireImage.com

Spencer Pratt, Heidi Montag, Wedding

Jason Mitchell/BuzzFoto/FilmMagic

Heidi Montag, Spencer Pratt

Kevin Perkins/PacificCoastNews.com

Heidi Montag, Spencer Pratt

Will Ragozzino/Getty Images

Heidi Montag, Spencer Pratt

Splash News

Heidi Montag, Spencer Pratt

Kevin Perkins, PacificCoastNews.com

Heidi Montag, Spencer Pratt

PacificCoastNews.com

Spencer Pratt, Heidi Montag

Alberto E. Rodriguez/Getty Images

Heidi Montag, Spencer Pratt

Broadimage/REX/Shutterstock

Heidi Montag, Spencer Pratt, Halloween 2008

Pacificcoastnews

Heidi Montag, Spencer Pratt, Kaitlyn Bristowe, Shawn Booth

Lies Angeles/MEGA

Spencer Pratt, Heidi Montag, Gunner Stone, Son, Baby, Commercial, Audition, Snapchat

Heidi Montag / Snapchat

Spencer Pratt, Heidi Montag, Gunner Stone, Son, Baby, Commercial, Audition, Snapchat

Snapchat / Spencer Pratt

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