"When we filled out the marriage license, I checked the box to change my name to Heidi Pratt," she tells Us Weekly. "It's on my new license, credit cards and everything."
"Now that we're legally married, I wanted to do the right thing," says Mrs. Pratt. "I want us to be a family in every way. When we have kids, I want us to all have the same last name."
We're still not convinced that they legally tied the knot. We want to see a marriage certificate!