Katy Perry says she and John Mayer don't speak at home

There’s not a lot of “Roar”-ing in Katy Perry and John Mayer’s house.

In an interview on Ellen, Perry revealed that the pair often end up communicating through an iPad to preserve their voices. According to the singer, Mayer’s vocal cord problems have made it crucial that he not speak — or whisper — as much as possible off stage.

“I understood that he couldn’t talk, and the only way he could communicate was through an iPad,” Perry told DeGeneres in her interview (below). “Some days I have to go on complete vocal rest, like no anything, no whispering. Whispering is actually really bad. There’s just a lot of silence in our house most of the time.”

Mayer later stopped by the show to surprise Perry, walking out while their duet “Who You Love” played. The lovey-dovey duo shared behind-the-scenes stories for the song’s music video, with Mayer joking that it was his first sober bull ride. When Perry quipped that their couple video beats out Kanye West and Kim Kardashian’s “Bound 2” video because her hair’s blowing in the right direction, Mayer said her humor makes up for the silence at home. “This is why voice rest is just fine,” he said. “You get these chestnuts.”

Check out the rest of the interview below. And tell us: What’s your reaction to the joint interview?