You’re packing a suitcase for a place none of us has been.

I don’t like endings or goodbyes, but I love songs about them. That’s something that will become abundantly clear as this series continues, if it’s not clear already. And there are very few songs about endings or goodbyes that matter more to me more than “Walk On,” an utterly splendid highlight from U2’s 2000 comeback album, All That You Can’t Leave Behind.

Up until 2004, almost all the music I loved had been made in my lifetime. I was drawn to the music of right now, often finding older songs or records to sound dated. I remember listening to Springsteen’s Born in the U.S.A. at some point and thinking it sounded positively ancient. (Sorry, Boss!) All those ‘80s synthesizers struck me as plasticky and passe, and I struggled to appreciate the songs underneath. It wasn’t just ‘80s synths that made my no-fly list either: I checked out The Beatles’ Rubber Soul around that same time, and found it to sound hopelessly old-fashioned.

In 2004, U2 became the first band to break through that barrier for me. It didn’t hurt, of course, that they were still a relevant band of the moment. They’d had massive hits in 2000 and 2001 with “Beautiful Day” and “Stuck in a Moment You Can’t Get Out Of”; in 2002, they’d played a Super Bowl halftime show – for my money, the greatest one of all time, with apologies to Prince; and they were currently enjoying a new level of omnipresence thanks to a stylish iPod commercial, featuring their new single “Vertigo,” that got played on every single ad break of every single prime time television program for approximately 3-6 months.