Fatback DJs Michael Miller (center) and Pete Welsch (right) get in the groove at Liv. (Evy Mages/For The Washington Post)

We know dragging your friends out to a club they’ve never been to can be a tough sell. No matter how much you swear, “No, they play fantastic music! I promise!” there will be people who go, “But will they play anything I can dance to?”

Thankfully, two local DJ nights will do the convincing for you. Fatback , the monthly night of deep-and-dirty funk, soul and R&B, returns to Liv tomorrow. The nomadic Mixtape party, which features DJs Shea Van Horn and Matt Bailer pulling out their favorite Top 40 remixes, ’80s pop and guilty pleasures, docks at DC9 on Saturday night. And both DJ crews have put out online mix previews for you to crank on this gorgeous Friday afternoon while you count down the minutes until the weekend begins.

Download or stream it from Zshare or Divshare before heading over to U Street on Saturday night. There’s no cover or dress code at Liv — but as the guys always say, “Come dressed to sweat,” because the disco-funk will be flying all night.

Mixtape’s mix is a little shorter and more high energy, which is exactly what you can expect on DC9’s main floor and its roofdeck all night: It includes Calvin Harris and Kelis’ collab “Bounce,” touches of French house producer Martin Solveig (with Phoenix singer Thomas Mars), perrenial Mixtape favorite Kylie Minogue and eight other dance floor fillers. It’s streaming on 8tracks.com. There’s a $5 cover for Saturday’s party.