Jacob Micah Nelson is an American singer, songwriter, multi-instrumentalist, producer, and multimedia artist. He performs and records under the name Particle Kid and has released four albums under that moniker; he was also a longtime member of the band Insects vs Robots. The youngest son of Willie Nelson and his wife Annie D'Angelo, and the brother of Lukas Nelson, Micah Nelson also works with his father as co-writer and producer and has appeared on Willie Nelson albums. He has served as the guitarist with Neil Young and Crazy Horse and is a founder with Young of The Chrome Hearts.