Alexander George Edward Crossan[1] (born 5 April 1996), better known by his stage name Mura Masa, is a Guernsey-born electronic record producer and songwriter.

[8] After playing guitar, bass, drums and singing in local punk, hardcore, deathcore, and gospel bands, Crossan started self-producing at the age of 15, "searching for samples on YouTube and other corners of the internet".

[11] At 16, Crossan started to make electronic songs using Ableton Live, and uploaded them to SoundCloud the following year under the alias Mura Masa,[12] taken from Japanese swordsmith Muramasa Sengo.

The track "Lotus Eater" was picked up by BBC Radio 1 with Zane Lowe, Annie Mac, Huw Stephens, and Phil Taggart all playing the song on their shows.

As well as Mura Masa records, the label has released music by Dublin artist Bonzai[18] and post-music duo Jadu Heart.

[19] In April 2015, he released his debut EP Someday Somewhere, with lead track "Firefly" being chosen for the In New Music We Trust playlist at BBC Radio 1.

[32][33] Crossan co-wrote the track "First Things First" on Stormzy's Gang Signs & Prayer, which entered the UK Albums Chart at number 1 on 3 March 2017.

The album was produced and recorded from 2014 to 2016, and has guest features by A. K. Paul, ASAP Rocky, Bonzai, Charli XCX, Christine and the Queens, Damon Albarn, Desiigner, Jamie Lidell, Nao, and Tom Tripp.

Before that, on 12 June 2018, the band also premiered another song from the album "Boogie All Night", which features Crossan, alongside working affiliate Nao.