In high energy proton-proton collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC), high energy sprays of particles, called jets, are one of the most copiously produced final states. Jets form when a quark or gluon is produced in a scattering process, and because of confinement, these quarks and gluons nonperturbatively form a collimated spray of hadrons. While jets are one of the most frequently used objects in physics analyses at RHIC and the LHC, it was only recently realized that the structure of jets can probe a wide variety of physics at collider facilities. In this talk I will discuss the breadth of physics that can be probed by studying the constituents of jets, with a focus on recent results from the LHCb experiment.