The 'Teenage Dream' star told OK that she is delighted her fellow singer is expecting a baby.
"I love the fact that she's going to have a baby. That's so cute of her. She's such a good woman," Perry said.
"And she was really nice in my movie, saying nice things about me. I've always loved her."
Perry added: ''She came and saw one of my shows really early on when I played this small venue in London.
"She came backstage and I was eating a burrito and she was like, 'A burrito? Where did you get that burrito in England? Where did you get Mexican food?' And she took it, that bitch!"
Adele and boyfriend Simon Konecki announced they were expecting a baby in June. Her due date is rumoured to be as early as September.
Watch Adele's video for 'Someone Like You' below: