Big Sean and Kid Rock, two proud Detroit natives, were separated by about 30,000 equivalent records on the Billboard 200 this week with Dark Sky Paradise and First Kiss, respectively, but things were a lot tighter when only album sales were taken into consideration. The pair was almost exactly 1,000 apart from each other, with Sean passing Rock in the last day of sales tracking. Dark Sky ended up selling 135,500 copies while First Kiss debuted with 134,500.

It was a long way back from there to the no. 3 album seller of the week. Just like on the Billboard 200, Fifty Shades of Grey passed Drake's If You're Reading This It's Too Late on the album charts as well. The soundtrack sold 66,500 copies, while the Toronto emcee moved 57,500 copies of his mixtape/album.

Fan of A Fan: The Album, the collaboration between Chris Brown and Tyga, got a bit of a boost in terms of overall ranking when streams and single downloads were taken out of the picture. The album moved 52,500 copies, which marks a down week for Brown but a nice debut for Tyga, relatively.

Taylor Swift is as far back as she's ever been on the albums chart with 1989, settling for no. 6 with 47,500 copies sold. Despite the "low point" this week, she's shown impressive longevity for pure album sales, through 18 weeks. Compare that with Imagine Dragons, who debuted at no. 1 last week with Smoke + Mirrors, and then dropped by nearly 75 percent this week, taking no. 7 with 43,000 in sales.

Ed Sheeran and Sam Smith are two more musicians who have been especially resilient on the Albums charts. The former sold 40,000 copies of his x, settling at no. 8 in his 36th week, while Sam Smith and In The Lonely Hour sold 39,000 copies and took no. 9 in his 37th week (both have fallen out of the Top 10 at some point during that stretch).

One more new album gets to crack the Top 10 this week, as Red and Of Beauty and Rage takes the last spot, having sold 35,000 copies.