This past week on the Billboard 200, it was all about the not-quite showdown between Bon Jovi and David Bowie. Bon Jovi logged its fifth No. 1 with the debut of "What About Now," while Bowie notched his highest charting album ever as "The Next Day" started at No. 2. The albums sold 101,000 and 85,000, respectively, in their first weeks.

Outside of the top 10, there were some movers and shakers. Let's take a closer look at some of them…

-- Ed Sheeran: Arguably one of the biggest breakout stars of the past year, Ed Sheeran sees his debut album, "+," cruise past the 500,000 sales mark this week, according to Nielsen SoundScan.

The set, which debuted at No. 5 on the Billboard 200 exactly 40 weeks ago, sold another 16,000 copies this week (up 85%), rising 51-24 on the chart. Its large gain was caused by sale pricing at Amazon MP3, which marked down the title to $1.99 for one day, March 15.

The album's single "The A Team" was first a hit on the Triple A radio chart in April of 2012, eventually rising to a No. 3 peak in July. By September, the song had crossed over to top 40 radio, debuting at No. 37 on Mainstream Top 40 on Sept. 15. It slowly climbed its way to a No. 9 peak in January and February earlier this year. Its top 10 ranking at top 40 conveniently coincided with Sheeran's exposure on the Feb. 10 Grammy Awards, where he was nominated and performed on the show.

Sheeran is currently on tour with Taylor Swift through September.

-- Phillip Phillips: The most recent "American Idol" winner performed on the "Idol" stage on March 14, thus sparking a 90% sales gain for his "The World From the Side of the Moon" album. It rallies 33-18 with 20,000 sold, marking its best sales week since the chart dated Feb. 2 (25,000).
-- Chicago: The band's "The Very Best of Chicago: Only the Beginning" returns to the list at No. 20 with a 2,689% gain after Amazon MP3 sale priced the set for $1.99 on March 15. It's the highest ranking for group since April 1985, when "17" closed out a six-month run in the top 20. Many other titles gain on the chart this week thanks to the $1.99 pricing, including Nos. 21, 31, 32, 33, 34, 35, 42, 44, 48 and 54.

-- "The Walking Dead" soundtrack: After an early release on March 16, the soundtrack to the hit AMC TV show debuts at No. 92 with 6,000 and a No. 6 entry on Soundtrack Albums. The album may see a gain next week, after a full week's worth of sales have kicked in.

-- Megan Hilty: The co-star of NBC's "Smash" sees her debut album, "It Happens All the Time," take a bow at No. 96 with 5,000 sold. Forty-eight percent of the title's first week were download sales, while 10% of its overall debut week were from New York City. That's fitting, since the actress/singer has starred on Broadway in both "9 to 5" and "Wicked."

-- Flogging Molly: The band's "Drunken Lullabies" album makes its annual return to the chart (re-entering at No. 144), following sales generated by the St. Patrick's Day holiday (March 17). The Celtic punk rock band's set shifted 4,000 last week (up 391%) for its best frame since… St. Patrick's Day week 2012! (It sold a few hundred more that week.)

-- The Drifters: After almost 45 years, the vocal group returns to the chart with "All-Time Greatest Hits" (No. 199 with 3,000; up 4%) after continued promotion at mass merchants. The act was last on the chart in the spring of 1968 with the No. 122-peaking the Drifters' Golden Hits.