This is without a doubt the finest collaboration between the two most famous drummers ever. There is no sense of competition on this album, just wonderful, swinging interplay between these two giants. When one looks at Buddy Rich and Gene Krupa, one can make an analogy to Art Tatum and Count Basie on the piano. Rich, like Tatum, was simply the greatest technician on his respective instrument that ever lived. No one has even come close to duplicating what he did on the drums. Krupa, on the other hand, was a master of pure swing just like his counterpart on the piano, William Basie. Krupa could make the drums sing like any other instrument as his sticks literally danced on the drums. Krupa could play a simple beat and turn it into a mesmerizing mantra, whether it be on his snare or on the floor tom. What makes this album so special is that each drummer sticks to what he does best, and the result is an extremely even matchup. Krupa responds to Rich's thunderous technique with playful, entertaining, and always hard-swinging magic. And add the fact that the band on this session consists of trumpet giants Dizzy Gillespie and Roy Eldridge, tenor saxophonists Illinois Jacquet and Flip Phillips, and a rhythm section of Oscar Peterson, Ray Brown, and Herb Ellis, this album cannot help but swing like mad.