New Delhi, Mar 17 (ANI): Lady Gaga has slammed the comparisons between her and Katy Perry during her keynote speech at SXSW. The ' Applause' hitmaker said that she doesn't know what she has to do with Perry, as their music is completely different. She said that she doesn't really fit in pop music and would like to think that she has changed it in a way where one doesn't have to fit into a mold. The 27-year-old singer had earlier said that there is no feud between her and the ' Roar ' hitmaker and that she likes her music and fans.