It's Pink Floyd week on 'Late Night with Jimmy Fallon', and last night Foo Fighters were on hand to cover 'The Wall' classic 'In the Flesh' with a little help from Roger Waters.

Is there any living rock legends that Foo Fighters haven't jammed with yet? After recent performances with members of Queen, Led Zeppelin, and Motorhead, the band joined Pink Floyd bassist/vocalist Roger Waters for a performance of 'In the Flesh'.

Different musical guests  will be taking on Floyd tunes all week -- Monday The Shins rocked out a version of 'Breathe' the Waters himself was impressed with, MGMT and Dierks Bentley are set to perform as well. The week will be closed out by Pearl Jam, who will be taking on another classic from 'The Wall' -- 'Mother'.