Iron (Nicky Romero and Calvin Harris song)

"Iron" is a song by Nicky Romero and Calvin Harris. The song was released as a single, via Beatport. It became the second single to be released through Romero's label Protocol Recordings (after "WTF!?" with ZROQ), and the first single from the label to reach number-one on Beatport. A shortened version of the song was later included on Harris' third studio album, 18 Months (2012).

"Iron"
Promotional single by Nicky Romero and Calvin Harris
Released	10 September 2012 (2012-09-10)
Recorded	2012
Length	5:02 (original mix) 3:39 (album version)
Label	Protocol
Songwriter(s)	Nicky Romero Calvin Harris
Producer(s)	Nicky Romero Calvin Harris

Composition

The majority of the song has an upbeat electro house style until vocals from Harris come in. When the vocals do come in, the background tune is just a piano being played until Calvin Harris sings "Our hearts will never be the same again". After this happens, the song becomes upbeat again, but more aggressive.

Track listing

Digital download – single

No.	Title	Length
1.	"Iron" (Original Mix)	5:02

Digital download – remixes

No.	Title	Length
1.	"Iron" (Dyro Remix)	5:27
2.	"Iron" (Tony Romera Remix)	7:23

Credits and personnel

• Nicky Romero – production, arrangement, all instruments
• Calvin Harris – production, arrangement, vocals

Certifications

Region	Certification	Certified units/sales
Netherlands (NVPI)	Gold	10,000^
^ Shipments figures based on certification alone.

Release history

Region	Date	Label	Format(s)
Various	10 September 2012	Protocol	Digital download
	8 October 2012		Digital download (Remixes)

External links

• "Iron" on YouTube