Amir Davidson, professionally known as Amir Derakh, is an American musician and record producer. He is currently the guitarist and the synthesizer player for the band Julien-K, and was the guitarist for the band Dead by Sunrise. He was once the guitar synthesizer player in the rock band Orgy, and has also played guitar in the bands Rough Cutt and Jailhouse.

Julien-K is an American electronic rock band based in Long Beach, California, that began as a side project for electronic music created by Amir Derakh and Ryan Shuck from Orgy, alongside Anthony 'Fu' Valcic.