The Hills stars' - Heidi Montag (22) and Spencer Pratt (25) - have surprised everyone by wedding in a secret ceremony in Mexico, reports Us Magazine.

Perhaps the most surprised of all was Heidi's dad Bill Montag who told People on Monday that "[he] would be upset if she got married and didn't invite me!"

Sorry Bill. Heidi married love rat Spencer at the One & Only Palmilla Resort, just outside Cabo San Lucas on November 20.

"The minute we said our vows, I couldn't stop crying," Montag, tells Us Magazine.

And if that isn't romantic enough check out Spencer vows:

"Heidi, from the moment you came into my life, I knew my life would never be the same without you. You are the light in my life like the sun to the earth! Your loving warmth makes me want to be a better person. Being with you, I feel complete. I'm honored to even be able to call you my wife. You are the most amazing, loving and caring woman on this planet. I will love you forever and always."

Heidi and Spencer haven't always been so grown up. The couple first got together when Spencer asked Heidi (then best friends with fellow The Hills star Lauren Conrad) to move out of the house she shared with her best friend, and in with him.

More scorching hot goss

Check out Heidi's film clip for 'Higher' - filmed by Spencer himself