""The big mother of all rock concerts."" On October 29th and 30th, 2009, rock 'n' roll royalty held court at Madison Square Garden for what have been called ""the best concerts ever,"" where ""rock 'n' roll history was made."" The concerts featured a who's who of rock 'n' roll and included artists performing together in unprecedented combinations that will most likely never be witnessed again. This ""best of"" features 26 performances from the Emmy winning HBO special."