Bobin Thicke's 'Blurred Lines' is the number one song in the nation again going on 8 consecutive weeks now.

On the original, Thicke is joined by T. I. and Pharrell.  In this video, Thicke appears in the Late Night 'Music Room' with Jimmy Fallon and The Roots to play 'Blurred Lines' on classroom.

Here is a list of talent and what instrument they played:

Jimmy Fallon - wood block, Casio keyboard
Robin Thicke - spoons
Questlove - wooden clacker
Mark Kelley - kazoo
Kamal Gray - xylophone
James Poyser - melodica
Captain Kirk - ukulele
Tuba Gooding Jr. - recorder, banana shaker
Frank Knuckles - cowbell
Black Thought -- maraca

'Blurred Lines' With Jimmy Fallon And The Roots