Didn’t realise Charli XCX was behind tracks from Icona Pop & Iggy Azalea but makes sense when you hear them – http://www.shazamers.com/2014/11/27/featuredbyshazam-charli-xcx
Source
https://twitter.com/danielmcclure/status/540536829507039232
https://twitter.com/danielmcclure/status/540536829507039232