With seven-inch picture disc and CD sales kicking in, Lady GaGa's Just Dance sold 65,764 copies last week, and jumps 3-1 to become the 13th terpsichorean title including dance, dancing or a derivative thereof, to top the chart thus far.

Its accession to the summit coincides with its arrival at the apex in America but there it has taken it 22 weeks from debut to reach number one, selling upwards of 2m copies along the way.

Just Dance is the ...