Bob Dylan Releases Ultra-Rare Sessions With George Harrison

Bob Dylan just shocked fans with a surprise holiday gift - a release of the ultra-rare 'George Harrison Sessions'.On May 1st, 1970, Dylan and Harrison jammed in the studio on some Dylan songs, as well as the Beatles classic "Yesterday". 

While the sessions have been passed around as bootlegs, they've never seen an official release before now.

However, it may not have been holiday spirit that inspired Dylan - he's releasing them now to avoid European copyright laws that would have put them in the public domain.

What rock stars would be part of your 'dream' jam session?