Viscosity studies on containerlessly-processed metallic liquids reveal a crossover temperature, TA, located near the melting temperature. Based on MD simulations, TA marks the onset of cooperative flow in the liquid. Scaling the inverse temperature by TA, instead of Tg, and the magnitude of the viscosity by ηo, the extrapolated viscosity at infinite temperature, a universal curve is obtained from above the melting temperature down to the glass transition temperature. As has been suggested theoretically, ηo is equal to the product of the number density and Planck’s constant. The glass transition temperature is simply related to TA, indicating a deep connection between the onset of cooperative dynamics and the dynamical processes of the glass transition, and pointing to a possible new method for searching for good metallic-glass forming liquids. Liquid fragility correlates with small systematic variations in the ratio of TA/Tg. Partially Supported by the NSF (DMR-12-06707) and NASA (NNX10AU19G).