Australia

Singles:
1. Rihanna : In My Head
2. Jason Derulo : In My Head
3. David Guetta : Memories

Albums:
1. k.d. lang : Recollection
2. Mumford and Sons : Sigh No More
3. Susan Boyle : I Dreamed A Dream

Courtesy of ARIA: www.ariacharts.com.au

AIR Charts are courtesy of Association of Independent Record Labels: www.air.org.au

UK

Singles:
1. Tinie Tempah : Pass Out
2. Rihanna : Rude Boy
3. Jason Derulo : In My Head

Albums:
1. Ellie Goulding : Lights
2. Lady Gaga : The Fame Monster
3. Alicia Keyes : The Element of Freedom

UK charts are courtesy of the BBC: www.bbc.co.uk/radio1/chart

USA

Singles:
1. Taio Cruz featuring Ludacris : Break Your Heart
2. Lady Antebellum : Need You Now
3. Young Money featuring Lloyd : BedRock

Albums:
1. Lady Antebellum : Need You Now
2. Sade : Soldier Of Love
3. Blake Shelton : Hillbilly Bone

US charts are courtesy of Billboard: billboard.com/bbcom/charts/genre_index.jsp

Canada

Singles:
1. Nikki Yanofsky : I Believe
2. Nickelback : Burn It To The Ground
3. Jason DeRulo : In My Head

Albums:
1. Lady Antebellum : Need You Now
2. Sade : Soldier of Love
3. Various : Now 15

Canadian charts are courtesy of Jam Music: jam.canoe.ca/Music/Charts