"It's the best decision I ever made in my entire life," Perry said about becoming a mom on Monday's show.
"I have family and support and I've got an incredible fiancé who's done this before," Perry said of Bloom.
"He's been amazing, incredible and we're so in love and we're so grateful."
Perry appeared on Jimmy Kimmel Live with long dark hair, a change from her short blonde hairstyle. Perry later revealed that she was wearing a wig on her Instagram Stories.
"I like to keep people on the edge of their seats but also when mom has a night off, she leans all the way in," Perry said about the different look.