The wait for Post Malone's Stoney album continues but the rapper has shared new song "Deja Vu" to tide fans over. The laid-back track has an almost "Hotline Bling"-esque tempo and sees Justin Bieber crooning If you wanna do what I wanna do/ Well I guess that's just deja vu, over the chorus. The pair toured together earlier this year when Post Malone supported Bieber on his Purpose world tour. A release date for Stoney remains up in the air after Post Malone missed his August 26 deadline last month. Check out "Deja Vu" below.