DRAKE'S surprise album "If You're Reading This It's Too Late" debuted at #1 on the Billboard 200 chart this week with 535,000 copies. It's pretty impressive for an album that was released with no notice on a Thursday night, and only had a little more than three days of sales count towards its debut. It's Drake's fourth #1 album. The "Fifty Shades of Grey" soundtrack was the next biggest release of the week. It sold 258,000 copies to debut in 2nd place. That's the largest sales debut for a soundtrack since "This Is It" from the MICHAEL JACKSON concert film hit #1 with 373,000 copies in 2009.

Here are this week's Top 10 albums . . .

1. NEW: "If You're Reading This It's Too Late", Drake . . . 535,000 copies

2. NEW: The "Fifty Shades of Grey" soundtrack . . . 258,000 copies

3. "In the Lonely Hour", Sam Smith . . . 164,000 copies

4. "x", Ed Sheeran . . . 140,000 copies

5. "1989", Taylor Swift . . . 125,000 copies

6. "Title", Meghan Trainor . . . 72,000 copies

7. "Now That's What I Call Music 53" . . . 72,000 copies

8. "Morning Phase", Beck . . . 71,000 copies

9. The "2015 Grammy Nominees" compilation . . . 65,000 copies

10. "V", Maroon 5 . . . 63,000 copies