A Thousand Years is only a classic for 1/100 of white people that somehow want it played at their weddings (gross). CMM was everywhere and will not be forgotten.
Call Me Maybe was a monster of a hit -- with extremely hefty sales -- and had substantial impact. Those two songs aren't comparable.
Harlem Shake had a big enough impact to force Billboard into changing their chart methodology and it was everywhere x 20. Everybody and their mothers and their grandparents and their unborn children were filming themselves doing it and posting it.
Harlem Shake had a big enough impact to force Billboard into changing their chart methodology and it was everywhere x 20. Everybody and their mothers and their grandparents and their unborn children were filming themselves doing it and posting it.