The pullup is an amazing full-body exercise that builds muscle, develops tons of functional strength, and can burn lots of body fat while giving you that sexy "V" shape that everyone wants. Did you know that pullups can even be used for a type of high-intensity "cardio" exercise? You just need to know how to do Crossfit-style kipping pullups. Check out this video:
CrossFit workouts are some of the best for burning fat quickly while also building/toning muscle and creating useful "functional" strength. It's true old-school training for real world strength.