Katy Perry has recorded a racy new dance track with DJ Alesso. The 37-year-old singer - who has a 15-month-old daughter called Daisy with Orlando Bloom - has teamed up with Alesso for her comeback track. A source told The Sun newspaper: "The song is classic Katy and deserves to be a hit. "She’s finally back to the dark hair she rocked during the height of her fame. The video ...