Perry, 27, said she is very excited for Adele, who briefly appeared in Katy's "Part Of Me" 3D movie, as she is expecting her first baby with boyfriend Simon Konecki, reported Contactmusic.
"I love the fact that she's going to have a baby. That's so cute of her. She's such a good woman. And she was really nice in my movie, saying nice things about me. I've always loved her," Perry said.
The 'Teenage Dream' hitmaker, whose divorce from Russell Brand was finalised in July, said that she first bonded with 'Someone Like You' singer Adele when the hungry singer stole her fast food burrito.
"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."