British pop star and podcast host Lily Allen has apologized for criticizing US singer Katy Perry for taking part in a recent all-female space flight.

Katy Perry has taken to Instagram to call out the haters, slamming them as 'unhinged and unhealed' amid her receiving criticism over her historic Blue Origin flight to space and her Lifetimes Tour choreography.

Katy Perry continues to be raked over the coals for her trip to space via Jeff Bezos' Blue Origin aircraft. While the pop star, 40, was one of six passengers in the 11-minute trip in orbit, Perry has appeared to receive the brunt of the online criticism — with popular fast food chain Wendy's even asking if "we can send her back.