'21' certified 6x platinum in the US - 1/19/2012
'21' certified 7x Platinum in the US - 2/14/2012
'21' certified 8x Platinum in the US - 3/02/2012
'21' certified 9x Platinum in the US - 4/05/2012
'21' certified 6x platinum in the US - 1/19/2012
'21' certified 7x Platinum in the US - 2/14/2012
'21' certified 8x Platinum in the US - 3/02/2012
'21' certified 9x Platinum in the US - 4/05/2012