Yes. Digital DJ Pool is a legal promotion platform in the United States — registered with the US Copyright Office and an agent of the DMCA. Labels and artists put their music here to get it into DJs' hands.
The music is yours to use as long as you stay inside our terms and your local copyright laws. One thing worth knowing: a streaming platform's own rules (Twitch, Instagram, Facebook, etc.) can still block copyrighted music regardless of where you got it — see Live Streaming on Other Platforms.
Read the terms here: digitaldjpool.com/legal/terms.