Among other things, 2011 will be known as the year the 'Harry Potter' film series came to a close, and the year of LMFAO's mega hit 'Party Rock Anthem.'

The two become one in this 'Harry Potter'/'Party Rock Anthem' mash up, courtesy of the creative musicians Best Day Ever.

Watch the Hogwarts crew do their daily shuffling, only to have the party thwarted when Voldemort shows up below.

[via CBS News]