Guy's.. You are forgetting Christina Aguilera & A great big world :

Say Something being number 1 or 2 on Itunes for weeks !!!

Last week they sold 230.000 !!! Selling more then 1 million copies in 4 a 5 weeks time...!!!!

If it was not for the stupid " Streaming " it would have been number 1 on billboard 2 times already ! :)