Contrary to popular perception, isn't exactly averse to reunions. If anything, and can't keep away from each other. Just four years after 's 1980 death, laid down guitar on 's oldies act , and not long after that, joined the pair for a performance at 1985's Live Aid. That set was trashed by the public and band alike, as was their subsequent 1988 appearance at ' 40th Anniversary celebration, but despite these lackluster gigs, rumors of a full-fledged reunion continued to circulate well into the new millennium, even after & recorded a pair of albums in the mid-'90s -- a project that caused tension with , who was unaware of the collaboration until its release. Eventually, all the bad blood cooled and the trio once again reunited, this time with 's son on drums, for a full-fledged set as the headliners for the 2007 Ahmet Ertegun Tribute Concert. Five years later, this reunion was finally released as , a live album available either as an audio or a CD/DVD set, letting the world at large experience what was roundly and rightly acclaimed as a near-perfect reunion. Why is such a resounding success? The snide answer is rehearsal: knew their previous two returns to the stage weren't up to snuff so they spent a great deal of time woodshedding, realizing their reputation was on the line. And since none of the participants were truly tempted by an ongoing reunion, one where they would have to hawk the same set list at every corner of the globe for over a year, they decided to pour all they had into this one-off concert, betting that one great gig would trump a globe-conquering tour. They were right. is an ideal coda for , proof that the group's skills only deepened with age. Never once does the group sound as if they're grasping at re-creating their youth; they've selected a set heavy on blues, atmosphere, and hits, songs that allow each member -- including -- to stretch out and casually flaunt his skills. may no longer be able to reach the soaring highs he did in the '70s, but his lowered range gives "Black Dog" and "The Song Remains the Same" gravity, and helps give "Trampled Under Foot" a gut-level punch. still can muff a note or two -- so can the band, actually, with missing a line on the opening "Good Times Bad Times," a mistake that's thankfully left uncorrected -- but his imagination is unchained, and, when compared to the / records of the '90s, it becomes clear how much contributed to the band's chemistry, lending it grit and funk ("Misty Mountain Hop" grooves more than any song without bass should), deepening and coloring 's riffs, letting the band bounce out and return to center. All of this unique chemistry is evident on -- underscored ever so slightly by the presence of , the son of the king who now seems like the only possible heir to the throne, emphasizing that the band is a family affair -- and while this reunion is so unexpectedly, impossibly good that you'd want to experience this in the flesh, it also underscores the wisdom of leaving this as a one-time thing. This is so good that this is how you want to remember them: older, perhaps wiser, and still majestic. ~ Stephen Thomas Erlewine