Music To Be Murdered By Eminem at No. 1?

For the second time in less than two years, Eminem came out of nowhere on a late Thursday night to drop an album of entirely new material on unsuspecting fans and for the second time, he's done major numbers in the process. 
Music to Be Murdered By follows up behind Eminem's 2018 fellow surprise LP Kamikaze to the top spot on the Billboard 200 this week, with an impressive first-week tally of 279,000 equivalent album units. A landmark tenth album to reach the chart's top spot, putting him in the exclusive historic company of The Beatles, Jay-Z, Bruce Springsteen, Barbra Streisand and Elvis Presley.
What, if anything, is Eminem still doing so well this deep in his career? And what about some of the other interesting chart debuts he fended off the No. 1 spot this week?