Once upon a time, Justin Blau was exclusively a mashup artist. During this time before he debuted his first big single “Escape” with Paris & Simo and Bright Lights, 3LAU went on his 3LAU Your Mind Tour in 2012 with a noble goal in mind. In conjunction with the fundraising group Pencils Of Promise, Justin donated over twelve-thousand dollars of his own money and over ten-thousand dollars from taking one dollar of each purchased ticket to his 3YM Tour and added it to the proceeds to build a school over in Guatemala. He even partnered up with Electric Family to cap off the fifty-thousand dollard needed for the fundraising. As of January of 2013, the Justo Rufino Primary School stands as a new center of education for young children in one of the poorest regions in the world.

Although it’s been over a year since that school has gone up, 3LAU has not lost his sights on having a more schools built. To help him have a second school built, Justin has released his latest installment of mashup packs. In Dance Floor Filth Four, he brings together the likes of big names like Calvin Harris, Ellie Goulding, and Martin Garrix with the sounds of artists like Zhu, Tchami, and Audien. The best part of this free download is that when it reaches ten-thousand downloads, 3LAU himself will donate $10,000 to Pencils Of Promise that will go to the new school. If you want to donate to the cause directly, you can do so on the donation page here and join a great cause. If not, downloading the the full DFF4 will also help a new school go up somewhere in the world its needed most.