Consisting of songwriter Greg Bonnick and DJ Hayden Chapman, the duo has worked with artists such as Nathan Sykes, Nick Jonas, and Chris Brown since 2012, most notably having co-written the 2012's number-one UK hit "Turn Up the Music" for the latter artist.
[1] Bonnick and Chapman, however, are most known for their work with K-pop artists, most notably with soloists and idol groups under the management of SM Entertainment, such as f(x), Exo, Red Velvet and NCT.
After meeting through mutual friends, the duo started writing and producing together under the name Agent X with Leon Price, and eventually landed their first writing credit for "Turn Up the Music", which was released as the first single from Chris Brown's fifth studio album Fortune.
According to Chapman, LDN Noise then met SM Entertainment's A&R executives on a songwriting trip to Sweden during mid-2014, and started working with the label closely.
They eventually earned their first writing and producing credit under SM with "View" by Shinee, which was a commercial success upon its release, and has since become a frequent collaborator with the label's artists.