Katy Perry's roll just goes on-and-on. After killing the game with "Roar," KP is no doubt celebrating the #1 debut of Prism
, which gave the singer her best-ever first week thanks to sales of 286,000, according to figures provided by Nielsen SoundScan.

Dreams Come True
The #1 slot for Prism gives Perry two #1 debuts in a row, tying the open for her nearly triple platinum Teenage Dream, which also hit the top spot when it was released in August 2010 and sold 192,000 copies. Perry can also boast 2013's best-selling week for a female solo artist, beating out the first frame of Miley Cyrus' Bangerz (270,000).

Katy easily bested the week's other debuts (in fact she sold more than #2-9 combined), including Fifth Harmony's Better Together EP (#6, 28,000), DJ Khaled's Suffering From Success (#7, 27,000) and AFI's Burials (#9, 25,000). Over on the iTunes album chart, pre-sales for One Direction's Midnight Memories had the #2 slot locked down.

Drake Nears A Milli
The rest of the top 10 featured a shuffling of the deck from some recent chart toppers. Last week's #1 from Pearl Jam, Lightning Bolt, dropped 72 percent to #2 (46,000) and Cyrus was down two spots to #4 (43,000). Drake's Nothing Was The Same inched up a slot to #3 (44,000), putting him at more than 991,000, assuring platinum status by next week's chart.

Lorde also scooted up a bit, climbing two to #5 with her full-length debut, Pure Heroine, which moved another 40,000 for a one-month total of nearly 280,000. The week's biggest gainer was 20, the greatest hits package from TLC, which was up 60 spots to #12 and 280 percent as sales ballooned to 20,000.

Love For Lou Reed
With just one day of chart action before the reporting week ended, the news on Sunday that rock icon Lou Reed had died
 sent sales of his solo catalog soaring. According to Billboard, Reed's solo album sales were up 607 percent from less than 1,000 the week before, while his work with the Velvet Underground also got a boost, rising 236 percent to 3,000.

Reed's digital sales shot up 590 percent to 17,000 from 2,000 the week before (VU song downloads were up 410 percent to 5,000) with "Walk on the Wild Side" emerging as the biggest seller with 6,000 downloads (up 729 percent). Next week's chart should see a bigger sales bump with a full seven days of figures.

The top spot will likely be taken by Arcade Fire's Reflektor,
 though, which will be joined by new albums by Toby Keith and Kelly Clarkson's first Christmas effort.

Lorde Back On Digital Songs Throne
After being knocked down for a week by Eminem, Lorde was back at #1 on the Digital Songs chart chart with "Royals" (222,000). Meanwhile, Slim Shady's "Rap God" spiraled down, falling 61 percent and eight spots to #9 (106,000).

It was a good week for Lady Gaga, who debuted at #3 with her R. Kelly collabo "Do What U Want" (156,000), a more modest open than the first-week sales of her first ARTPOP single, "Applause" (218,000). The good news for Kels, though, was that "What U Want" represents his highest-charting single ever on the nine-year-old Digital Songs chart. The week's biggest gainer was OneRepublic's "Counting Stars," which moved up five to #4 as sales picked up 48 percent to 152,000.

Taylor Swift's 'Sweet' Week
As she starts writing
 her fifth album, Taylor Swift continues to be a presence on the charts thanks to the #6 bow of "Sweeter Than Fiction,"
 (114,000), from the soundtrack "One Chance" soundtrack.

Justin Bieber hit the top 10 once again with the latest release from his Music Mondays series, "Hold Tight," which debuted at #7 on sales of 111,000.