One of the greatest songs of all times, ever, in my opinion. It is among the few songs on my Greatest Songs of All Time Ever Forever list --which I plan on officially creating at some point soon.
Side note: One commonality in all of the songs on my Greatest Songs of All Time Ever Forever list, is they all share a wicked base lines.
That being said, The Beatles had a wicked bassist: Sir Paul McCartney.
...and, obviously, the karaoke version, because I'm a karaoke-fiend.