Her husband had no say in decision, but is flattered

A ring won't be the only symbol of Ashlee Simpson's love for her husband.

The newlywed intends to change her last name from Simpson to Wentz, in honor of hubby, Fall Out Boy bassist Pete Wentz, according to People.

"I think that that's something that a woman should do when they're marrying a man," she says. "It's a tradition that I think is a great tradition."

Wentz says it's purely his wife's choice.

"These decisions with Ashlee and her name are all completely up to Ashlee. I want her to do these kinds of things the way she wants to do them," he says, adding, "Oh man, I was like upgrade me! You know what I'm saying? The Wentz family, our Christmas card just got upgraded! It feels insane. It feels unreal."

The couple got married on May 17 in the home of Simpson's parents. The reception featured an Alice in Wonderland theme.

Simpson will use Wentz's last name privately, but professionally she'll be known as Ashlee Simpson-Wentz.