Definitely "Black Again." The highlight of Shangri-La. "Adhesive" would have been a great choice too. Truth be told, as much as I love the heavy stuff (and that is what got me started on STP in middle school [I'm 29 now] I've grown to truly appreciate the more reflective side of the band, and let's face it, sing-alongable, mellower songs that chicks dig too are what make mainstream hits.