Friday's Faking News. Tay Tay Writes A Diss Song Explaining Her Beef With Katy Perry.

This morning on the AOshow with Aidan and Oonagh, Tay Tay caught wind of the fact her former friend - now foe - Katy P was throwing her under the bus on Carpool Karaoke with James Corden so Tay Tay has got her own back with a brand new diss track!