Katy Perry and Justin Trudeau break up (and so do Taylor and Blake?)

Hi hi hi! On today’s show: Katy Perry and Justin Trudeau may be over almost as soon as they began, an explainer on that weird feud between Lana Del Rey and Ethel Cain, and is the friendship between Taylor Swift and Blake Lively ruined? Calvin Harris wants us to talk about him, and then Welcome to…