Katy Perry's hot new single "Chained To The Rhythm" made its iHeartRadio world premiere on Friday and I can't get it out of my head! Katy also released on of the more...interesting lyric videos out there. The video features the preparation of a *super* mini meal for a hamster. I don't fully understand how it ties into the catchy new tune, but watching each tiny item being prepared on tiny appliances with tiny utensils is oddly satisfying. Apparently, there's a whole YouTube series featuring the fraction-of-a-bite-size meals and their popularity is part of what drew Katy's team to them.