With her great 2011 debut album On A Mission, the young London pop singer found a way to let her starry-eyed exhilaration shine through overwhelming steamroller club beats. And now she's followed it up with a new four-song free EP called Danger, which features a whole ton of collaborations. Jessie Ware, Wiley, and Iggy Azalea add vocals, and Diplo, Jacques ...