Iggy will probably make an official announcement over twitter at any moment so just wait for. None of us really know the full story anyway, and there's probably been a lot of Chinese whispers going on online. TMZ/Perez Hilton wouldn't be reporting it for legal reasons.
So Katy was the one who told Iggy & Charli that they couldn't put Mų on? Is Katy behind Iggy and Charli's success? Is she jealous of the power those two now have? The plot thickens.
There's a link of unpublished TMZ article about this floating around on Twitter, I saw few people posting it already, the article is written and up on TMZ just still private, but I think TMZ is just holding back for a few hours until Iggy or her reps confirm/announce everything.
Everything's really sad, though. Not sure if I want to laugh anymore.