In 2007, 2 friends (Simon Lee, Alvin Wong) got together and started making bootleg remixes and mashups while DJing at small venues. Over the years they developed their sound and started producing original music. To date they have released singles and remixes across various record labels such as Armada Music, Black Hole Recordings, Suanda Music, Enhanced Music, and an EP on their own label Unicode Recordings.

On top of clocking up thousands of streams and sales in over 60 countries worldwide, their music has been featured at Tomorrowland, A State of Trance, Global DJ Broadcast, Find Your Harmony, and Amsterdam Dance Event, and regularly supported by Armin van Buuren, Ferry Corsten, Markus Schulz, MaRLo, and Andrew Rayel.

Every Saturday night they broadcast their radio show #HitzXcelerate with Simon Lee & Alvin featuring the biggest dance tunes in Malaysia in a non-stop mix on HITZ - Malaysia's #1 Hit Station.