Buddy Guy's visceral, blood-on-the-frets guitar work with Muddy Waters would alone qualify him as a legend—but on his own he personified the Chicago blues. His genius was obvious early on; ‘60s tracks like the harrowing “Stone Crazy” sound like Guy's bargaining with the devil for his soul in the middle of the recording session. Incredibly, he's maintained that intensity through the decades while still finding room to evolve, as shown by the sultry soul vibe of his ‘90s take on John Hiatt's shelter-from-the-storm ballad “Feels Like Rain”.