Singles: 

26 (28)    "Who's That Chick" by David Guetta feat. Rihanna

32 (25)    "Louder" by Parade

44 (57)    "Look At Me Now" by Chris Brown feat. Lil Wayne & Busta Rhymes

Albums: 

17 (08)   KILLER LOVE  Nicole Scherzinger      
[includes "Amenjena" and "Everybody" - 50% + 12.5% respectively o/b/o Trina Harmon / A Side Music (UK & Eire)]  

27 (10)   F.A.M.E.  Chris Brown      
[includes "Look At Me Now" - 25% o/b/o Nick Van Der Wall a/k/a 'Afrojack' / Talpa (UK & Eire)]  

46 (41)   THE FAME (MONSTER)  Lady GaGa 
[includes "Retro Dance" - 20% o/b/o Calvin Gaines / The Royalty Network (UK & Eire)]        [included on International Digipack edition only]    

60 (54)    THE BEGINNING The Black Eyed Peas
[includes "The Best One Yet (The Boy)" and "Everything Wonderful" - both 25% o/b/o Giorgio Tuinfort / Talpa (UK & Eire)  
    
70 (45)    OUTTA THIS WORLD Jls
[includes "That's My Girl" - 18.75% o/b/o  Jay Sean / Bucks (Worldwide)]

73 ( - )   RATED R  Rihanna      
[includes "Photographs" - 6% o/b/o Alain Whyte / Pacific Electric Music  (UK, Eire, South Africa + S.E. Asia (ex. Japan)]