Nicky Romero is back with his latest electro offering, featuring vocals from Calvin Harris. Nicky dropped this last weekend at Electric Zoo and it had the crowd going wild. The wobbling bass and quick build drops into a nice bassline that has a similar tone to “Metropolis.” Some readers have also pointed out similarities to Alesso’s “Clash,” but we’ll leave that one up to you to decide. Producers are always working on many projects concurrently, and both tracks are pretty awesome either way. One thing is for sure though: you can buy “Iron” on Beatport now on Protocol Recordings.