No applause for Katy Perry? During her keynote speech at South By Southwest music festival on Friday, March 14, Lady Gaga slammed comparisons between herself and fellow pop singer Perry.”I don’t know what the f–k-all I have to do with Katy Perry,” the “Applause” singer said onstage (via Billboard) at the Austin Convention Center in Austin, Texas. “Our music is so completely different. I couldn’t be more different, really. I really don’t fit in pop music in a way, but I came through it and I’d like to think I changed it in some way so you can feel like you don’t have to fit into a mold.