Thanks for the edit, Dave. When I first posted it the link worked but the YouTube example kept ending the song prematurely. When I edited it with a re-post of the link, the hyperlink feature disappeared.
Given a choice, I always prefer instrumentals. But there's something about Seal's gravelly-yet-clear voice, thought-provoking lyrics (usually), and his anthemic hooks and chord progressions that really resonate with me.
Also on YouTube I've bookmarked about 5 or 6 different live versions of Crazy (including one with Flea on an Ovation ABG, Tony Levin on a Music Man and an unknown guy playing a subterranean-sounding Wal) and every version sends chills down my spine.