The Billboard 200 albums chart was busy with four top 10 entries this week, including a No. 1 arrival from new rapper B.o.B with his "Adventures of Bobby Ray," which bowed with 84,000 copies according to Nielsen SoundScan. Also starting high were Bullet for My Valentine (No. 3), Melissa Etheridge (No. 7) and Miranda Cosgrove (No. 8). See this week's earlier top 10 re-cap story  for the blow-by-blow details.
Further down the list, let's take a look at some notable new entries, gains and drops:
No. 22 - Up 14 - Michael Buble - "Crazy Love" - Most of his catalog was sale priced in the iTunes Store last week for $7.99. This one sold 15,000 (up 21%).
No. 33 - Debut - Sons of Sylvia - "Sons of Sylvia" - No doubt brother trio's debut of 12,000 helped by its "American Idol" performance last week.
No. 62 - Up 48 - Gogol Bordello - "Trans-Continental Hustle" - After a week of iTunes exclusivity, the physical went to retail and gives the act its best sales week of 8,000.
No. 68 - Re-entry - Shania Twain - "Greatest Hits" - Last week's "American Idol" mentor profits (7,000; up 251%).
No. 72 - Debut - Travis Cottrell - "Jesus Saves: Live" - Sales resulting from a live broadcast event beamed to churches spur onsite sales for 2009 album (7,000; up 467%).
No. 129 - Down 86 - Original Broadway Cast Recording - "American Idiot" - Though it falls by 61% in its second week (not unusual), it should perk up in sales after the Tony Awards on June 13.
No. 139 - Up 43 - Sick Puppies - "Tri-Polar" - Band Tweeted their fans last week about how album (4,000; up 25%) was sale priced in Amazon's MP3 store all month for just $5.
No. 162 - Down 76 - Madonna - "Celebration" - Album comes down from its "Glee" high last week. It sells 4,000 (down 42%).
No. 169 - Re-entry - Shakira - "She Wolf" - On April 28 she performed on both "The Ellen DeGeneres Show" and "American Idol." Album sells 4,000 with a 72% gain.
No. 175 - Re-entry - She & Him - "Volume 1" - Was Amazon MP3 Store's deal of the day on May 1 for $3.99. It sold 3,000 -- up 101%.
No. 199 - Down 102 - Caribou - "Swim" - The set drops by an unsurprising 46% in its second week, yielding the biggest positional drop on the chart this week. Same sort of sophomore slump happens to Airbourne's "No Guts. No Glory" (90-190; down 47%).
Usher's "OMG" becomes the superstar's ninth No. 1 on the Billboard Hot 100 as it rises 6-1. The song earns dual Airplay and Digital Gainer awards for a second consecutive week, improving by an equal 35% in both radio impressions and download sales.
Other notable moves:
No. 7 - Up two - B.o.B Feat. Eminem and Hayley Williams - "Airplanes" - Title ranks at No. 2 on Hot Digital Songs (181,000 downloads) and debuts at No. 41 on Hot 100 Airplay, the best start by any title on that list since May 2008.
No. 10 - Up two - Jay-Z - "Young Forever" - Song, which sample's Alphaville's 80s hit "Forever Young," ups Jay-Z's top 10 count to 17, the most by any rapper. Airplay continues to rise, but a top five ranking on Digital Songs (129,000) is currently driving its overall ranking.
No. 15 - Up 11 - Sean Kingston & Justin Bieber - "Eenie Meenie" - Top 40 radio airplay and the usual Bieber fervor push this up the Hot 100 and into the top 10 of the Digital Songs list (17-10, 99,000).
No. 53 - Debut - Glee Cast - "One Less Bell to Answer/A House Is Not A Home" - One of five debuts on the list by the TV troupe, all fueled by digital sales. Of the four debuts from a week ago, only "Like A Prayer" survives (27-96) as second-week sales for the TV tracks normally nosedive.
No. 54 - Up 41 - Miranda Cosgrove - "Kissin U" - Album debut (No. 8 on Billboard 200) sparks digital sales for the "iCarly" TV star's latest track. Title sells 45,000 (up 82%), leading to largest leap on the Hot 100.
No. 65 - Debut - Shakira - "Gypsy" - Singer's performance of song on both "The Ellen DeGeneres Show" and "American Idol" last week prompts a 313% digital spike to 30,000 units.