Julian Waterfall Pollack / J3PO (born June 28, 1988) is an American pianist, keyboardist, composer, and producer associated with jazz, classical, and hip hop music.

[3][4] He began formal study of the piano at age of five with his mother, and was called a child prodigy, able to play difficult pieces of classical music well beyond his years.

He released his debut jazz trio album, Goin' for It, to much critical acclaim in the San Francisco Bay Area and achieved national recognition by being featured on Jazziz magazine's monthly CD.

[7] He continued this trajectory with the trio's 2013 album, Waves of Albion, which included a polyrhythmic arrangement of "What Sarah Said" by Death Cab for Cutie, "Flume" by Bon Iver, and the American folk song "Oh Shenandoah".

The name came from his trio mate Evan Hughes: “He called me up one day and randomly left me a voicemail starting with ‘Hey J3PO’ – and ever since then that was my alter-ego music nickname.

So you have J.W.PO which are my initials in addition to referencing the droid C3PO from ‘Star Wars,’ which I love.”[13] He released The 90s EP in 2016, a collection of nineties pop songs re-harmonized, rearranged, and sung on the talkbox.

[13] In 2019, Julian (as J3PO) released his album Small Plates, a collection of 12 tracks that range from simple lo-fi beats to complex jazztronica future house joints.