The singer poked fun at her fiance for his recent Instagram post.
Perry also performed at the star-studded event.
In real life, the actor and the Duke of Sussex are neighbors in Montecito, California.
The couple posed alongside Sophie and Joe at the star-studded event for the Paris fashion house.
The pair enjoyed a family walk over the weekend.
See how celebs commemorated the special holiday.
The couple is coming together to fight voter suppression.
While in Venice, the two snapped a kissing selfie and even went on a gondola ride.
On ET's The Download, how Ariana Grande’s family feels about her wedding, plus our first look at Charli and Dixie D’Amelio’s new show.
The A-listers welcomed their daughter Daisy last summer.
ET spoke with Katy Perry, Luke Bryan and Lionel Richie about ‘American Idol’ contestant Caleb Kennedy’s shocking exit.
Perry's sweet post came a few hours before a special Mother's Day episode of 'American Idol.'
In a new video for British Vogue, Billie Eilish is shocked over celebrity questions from twenty two of her most famous fans.
Once again, Perry went all-out for the show's themed event.
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