Katy talks about quitting 'American Idol' to go on The Lifetimes Tour, doing over 75 dates, taking her four-year-old Daisy around the world with her, Daisy singing her song Peacock, going to see Radiohead when she was 13 and her dad not letting her go backstage, doing the FireAid Benefit Concert in support of those affected by the LA fires, and Jimmy unearths a clip of Katy stage diving at a concert in 2003. Watch 'Jimmy Kimmel Live!' WEEKNIGHTS 11:35/10:35c on ABC. Stream on Hulu.