There are numerous contenders for the title of best band of the kilter but Led Zeppelin have the honors of the rock stars. This quintet of musicians in the hot tubs and frocks per square mile have been together for over 40 years and counting. There has been a steady stream of accolades, and a few snarky comments about who the heck we are. Nevertheless the group has maintained a winning record of retaining the top spot for nearly four decades and counting.