NAV, Kehlani and Lil Durk will earn the top debuts this week as Drake's Dark Lane Demo Tapes goes into its second week.

NAV (XO/Republic) 70-75k total activity, 11-13k albums
Kehlani (TSNMI/Atlantic) 60-65k, 5-7k
Lil Durk (Alamo/Geffen/Interscope) 45-50k, 1-2k

New singles from Ariana Grande & Justin Bieber, along with 6ix9ine made some noise in their first day.

Ari & Justin's "Stuck With U" (SB/Def Jam/Republic) topped the Spotify and iTunes charts while racking up nearly 5m streams in day one.

Notorious rapper 6ix9ine earned 4m streams for his new single "GOOBA" (6ix9ine/Create), even with the handicap of its midday release on Friday. It's currently #1 at Apple Music and #2 at iTunes; the video had 39m views at YouTube in the first 24 hours.