Now that we're approaching to a new era
Teenage Dream:


America:
United States: 2,000,000 (2,935,000) 2xPlatinum
Canada: 320,000 (360,000) 4x Platinum
Brazil: 126,500 (~150,000) 4xPlatinum
Mexico: 60,000 (~80,000) Platinum
Argentina: 20,000 (~30,000) Gold
Chile: 5,000 Gold
Colombia: 5,000 Gold
Others: ~45,000
Total: ~3,610,000
Asia:
Japan: 100,000 (~150,000) Gold
Philippines: 20,000 (~40,000) Platinum
Others: ~50,000*
Total: ~240,000
Oceania:
Australia: 350,000 5xPlatinum
New Zealand: 45,000 (~60,000) 3xPlatinum
Total: ~410,000
Europe:
UK: 1,200,000 (1,210,000) 4x Platinum
Ireland: 30,000 (~60,000) 2x Platinum
Germany: 200,000 Platinum
France: 100,000 (220,000) Platinum
Sweden: 60,000 (60,000) Platinum
Italy: 50,000 (~60,000) Platinum
Switzerland: 20,000 Platinum
Denmark: 20,000 Gold
Austria: 15,000 (~20,000) Gold
Spain: - (~20,000)
Belgium: - (~30,000)
Netherlands: - (~30,000)
Others: ~150,000
Total: ~2,100,000
Africa / Middle East:
Middle East: 6,000
South Africa 20,000 (Gold)
Others: ~14,000*
Total: ~40,000
Total Worldwide: ~6,400,000
* =There's really no much info about African & Asian sales.
** Most of this sales are heavily underestimated
One Of The Boys' Sales are somewhat updated too