Tusk was the big deal double Fleetwood Mac album that came after the mega-platinum hugeness of Rumours (you may have heard of it) and thus was bound to fail. Gloriously. We do love it when the Music Biz fails thus, throws huge piles of cash and cocaine and marketing buzz at something that dares to be art. Particularly when it contains genuine treasures like Walk A Thin Line, Lindsey Buckingham not just close to the edge, right on it, and walking it just fine.