Billy Blanks' Tae Bo: 12 power rounds. 12 1-minute TAE BO POWER WORKOUTS. In just 12 minutes you will get a total-body workout with Billy's 12 POWER ROUNDS. The great TAE BO moves you know and love are now compiled into twelve 1-minutes power training rounds, where you will alternate high energy cardio with rest intervals, to give you maximum results in a minimal amount of time. You will feel your your heart pumping and calories burning in this express workout filled with 12 one-minute bursts of high energy cardio intervals.