I find it very interesting that she's brought back the Teenage Dream Team, but Bonnie is not mentioned or involved. I wonder if she was asked and declined or if an invitation was never extended. Bonnie has not eluded to any tension between them, but it's also kind of clear they haven't been in contact in recent years.
I was kind of hoping Katy would at least post an Insta story around Bonnie's album release but it becomes more clear the more we learn about her that she's not really a girl's girl.
https://www.rollingstone.com/music/music-news/katy-perry-new-album-kp6-dr-luke-max-martin-1235041835/