Katy, 35, also let her fans in on some of her major pregnancy cravings, revealing that she loves to carry Tabasco and has been eating "the same burrito for weeks on end".
On a live video after the video was released, Perry also revealed she is ready to release a new album, saying: "Let's call it a double-whammy".
"I am excited. We're excited and happy and it's probably the longest secret I've ever had to keep", she added. "It's getting pretty obvious". Perry had teased her video on social media where she could be seen with a baby bump.
"The truth is I have never worn white", she said.
"I thought we were going to go see some art after dinner, but we pulled up to a helicopter", Perry told Jimmy Kimmel about the proposal. It was also highly suspicious when Perry posted an old photo on Valentine's Day, as it's the holiday for which Bloom proposed to the singer past year. The singer sent fans into a frenzy that speculated if she was really pregnant or if it was just part of the video. Perry said that she's expecting the baby to arrive this summer.
First Australian, 78, Dies of Coronavirus
On Friday, the Australian Health Department confirmed the man's wife had also recently tested positive for coronavirus. Outside China, it has spread to 53 countries, with more than 6,000 cases and 86 deaths.
Katy Perry's first pregnancy was planned!
Katy wrote "full bloom" in the caption alongside her image.
The singer shared the news in the music video for her song Never Worn White which dropped earlier this morning.
"Never Worn White" is Perry's first single of the year.
In February 2019 the happy couple announced their engagement.
Katy Perry and Orlando Bloom are reportedly looking to start their new life in the "Land of the Rising Sun" over the summer - so long as the coronavirus doesn't change things.