Need some musical motivation

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I'm looking for suggestions of what everyone listens to to keep them motivated while working out. I got a few suggestions from my friends, but would like to hear what the general population likes. I've searched on youtube and keep getting the same set of rap songs over and over. I'm trying to classify the music into 3 categories: Warm up (light beat), Workout (upbeat) and cool down (light beat/calmin/relaxing) I'm going to go ahead and thank everyone ahead of time for offering their suggestions.