The pop singer reveals Wednesday on The Ellen DeGeneres Show that she's in the process of taking new husband Russell Brand's last name. But in fact, she's been going by Katy Brand informally since the Oct. 23 wedding.
People call her Mrs. Brand to "try to get my attention," she says. "Like if I'm at an event or something like that, and they want special attention, they go, 'Mrs. Brand!' And I go shwoosh [looks back]."
Perry, 26, also weighs in on the mutual admiration that Brand, 35, and Helen Mirren have expressed for each other. The British comedian has spoken of his Tempest costar's sexiness, while the Oscar winner, also appearing Wednesday on Ellen, says, "I'm just very jealous of Katy being married to him."
"She needs to step off my man," Perry jokes – but then quickly reconsiders. "Actually, I kind of don't mind that someone else takes some of the responsibility, because it's a lot of work [being married to Brand]. … There's never a dull moment."
"He's a lot of different things," DeGeneres says.
Perry replies: "Yes, he's a smorgasbord of things. A sense of humor is really important in our household. That's how we de-stress, and we like to have a laugh."