AllNews'Katy Praises John Mayer' - 1 News Result(s)Katy Perry praises "genius" John MayerEntertainment | Chandni | Sunday September 29, 2013 Singer Katy Perry has praised her boyfriend John Mayer's "genius" mind. She also says she wants to donate his brain to science and figure out "how all these sparks work". www.ndtv.com/entertainment'Katy Praises John Mayer' - 1 News Result(s)Katy Perry praises "genius" John MayerEntertainment | Chandni | Sunday September 29, 2013 Singer Katy Perry has praised her boyfriend John Mayer's "genius" mind. She also says she wants to donate his brain to science and figure out "how all these sparks work". www.ndtv.com/entertainmentYour search did not match any documentsA few suggestionsMake sure all words are spelled correctlyTry different keywordsTry more general keywordsCheck the NDTV Archives:https://archives.ndtv.com